Gould Plug and Wedge Mill (Camden, Knox County, Maine): Origins of Industrial Production on the Megunticook River (c. 1855–late 19th century)

The Gould Plug and Wedge Mill represents one of the earliest identifiable industrial enterprises on the Washington Street corridor of the Megunticook River in Camden, Maine. Although later overshadowed by woolen manufacturing and tanning industries, the Gould operation is historically significant as the foundational industrial use of what would later become the Tannery Park site. Established around the mid-nineteenth century, the mill reflects Camden’s early transition from a mixed agrarian–maritime economy into a water-powered industrial landscape.

The site that hosted the Gould Plug and Wedge Mill was part of a broader system of “mill privileges” along the Megunticook River—designated points where water flow could be harnessed for mechanical power. By the 1850s, Camden had begun to diversify beyond shipbuilding and agriculture, developing a range of small manufacturing enterprises including sawmills, gristmills, and specialized production facilities. Within this context, the Gould operation emerged as a niche industrial enterprise focused on producing wooden components essential to maritime construction and trade.¹

Establishment and Industrial Function

The Gould Plug and Wedge Mill is associated with Amasa Gould, who operated a plug and wedge manufacturing facility at the fourth mill privilege along the Megunticook River, near what is now Washington Street and Megunticook Street. The mill’s location was strategically chosen for its waterpower potential and proximity to Camden’s shipbuilding economy.²

The primary products manufactured at the Gould mill were wooden plugs and wedges, components widely used in nineteenth-century maritime and construction industries. Plugs were employed in shipbuilding to seal bolt holes and fasten structural timbers, while wedges were used for securing joints and adjusting wooden frames. These were not decorative items but essential industrial inputs integrated into ship construction and repair systems.

Contemporary accounts and later historical reconstructions suggest that Gould’s products were distributed beyond Camden’s immediate shipyards, reaching markets along the Maine coast and potentially extending to larger port cities. This reflects the integration of even small-scale manufacturers into broader maritime supply chains during the mid-nineteenth century.³

Technology and Production Context

The Gould Plug and Wedge Mill operated during a period of increasing mechanization in small-scale manufacturing. By the mid-1850s, specialized machinery had begun to automate plug and wedge production, improving efficiency and standardizing output. Regional industrial histories note the role of machinists such as David Knowlton, who contributed to the development and maintenance of mill machinery in Camden’s industrial corridor.⁴

Despite these technological developments, the Gould mill remained relatively small in scale. It reflected a transitional industrial form characteristic of rural Maine: partially mechanized, water-powered, and embedded in local trade networks rather than corporate manufacturing systems.

Labor and Industrial Environment

The Gould operation likely employed a small workforce consisting of skilled machinists, carpenters, and general laborers. While no surviving payroll records exist, labor patterns in mid-nineteenth-century Camden suggest a fluid workforce that moved between seasonal agriculture, shipbuilding, and mill labor depending on economic demand.

The mill operated within a concentrated industrial landscape along the Megunticook River, which included sawmills, gristmills, and later textile facilities. This clustering of industries reflects the importance of waterpower as a central organizing feature of Camden’s early industrial geography.

Transition and Absorption into Larger Industrial Systems

The Gould Plug and Wedge Mill did not remain a long-term independent enterprise. By the late nineteenth century, Camden’s industrial economy was undergoing consolidation. Larger textile firms, particularly woolen manufacturers, began to absorb or replace smaller specialized operations along the river corridor.

By the 1880s and 1890s, the site formerly associated with Gould had been incorporated into the expanding industrial footprint of the Camden Woolen Company, which established large-scale textile production in the broader Washington Street corridor.⁵ This transition reflects a regional pattern in which small water-powered mills were either repurposed or replaced by vertically integrated industrial enterprises capable of higher output and workforce expansion.

The Gould mill itself disappears from the industrial record as an independent entity during this period, but its site remained central to subsequent industrial development.

Historical Significance

Although short-lived as a standalone enterprise, the Gould Plug and Wedge Mill holds historical importance for several reasons:

It represents one of the earliest industrial uses of the Washington Street mill corridor.
It reflects Camden’s integration into maritime supply chains through specialized manufacturing.
It illustrates the pre-corporate phase of New England industrialization, when small water-powered mills dominated production.
It established the physical and economic foundation for later industrial occupants, including woolen mills and tanneries.

In this sense, the Gould Plug and Wedge Mill should be understood not as an isolated enterprise, but as the initial layer in a continuous industrial sequence that extended through Camden Woolen Company, Camden Tanning Company, Apollo Tanning Ltd., and ultimately into the modern Tannery Park landscape.

Footnotes

1. Camden History Society, “Camden’s American and Canadian Industrial Development,” overview of Megunticook River industries.

2. Camden Public Library, Walsh History Center, Millville industrial corridor records.

3. Town of Camden, Comprehensive Plan excerpts on Megunticook River industrial output and maritime trade networks.

4. Camden Mill Walk historical documentation, referencing David Knowlton and local mill machinery development.

5. Sanborn Fire Insurance Maps, Camden, Maine, late nineteenth-century industrial survey series.

Bibliography

Camden History Society. “Camden’s American and Canadian Industrial Development.” Historical overview of Megunticook River industries.

Camden Mill Walk Historical Documentation. Camden, Maine: Camden Historical Records Collection.

Camden Public Library. Walsh History Center. Millville Industrial Corridor Records. Camden, Maine.

Sanborn Fire Insurance Maps. Camden, Maine. Late nineteenth-century industrial survey series.

Town of Camden. Comprehensive Plan: Megunticook River Industrial Output and Maritime Trade Networks. Camden, Maine.

Apollo Tanning Ltd.: The Final Industrial Phase of the Camden Tannery Site (c. 1997–2000)

Apollo Tanning Ltd. was the final industrial tenant of the long-continuously used tannery complex located at 116 Washington Street in Camden, Maine, along the Megunticook River. Although its operational lifespan was brief, its significance in the industrial history of the site is substantial: it represents the closing chapter of more than a century of tanning activity and the transition of the property from private industrial use to municipal ownership, environmental remediation, and eventual redevelopment planning.

The company operated within a landscape already deeply shaped by successive industries. Before Apollo’s arrival, the site had been used for more than 100 years, first as part of the Camden Woolen Company complex (established in the late nineteenth century) and later as the Camden Tanning Company beginning in 1953. By the time Apollo Tanning entered the property in the late 1990s, the facility was an aging but still functioning industrial tannery embedded within a residential neighborhood, with legacy contamination issues already present from earlier operations.¹

Origins and Lease-Based Operation (1997)

Apollo Tanning Ltd. began operations at the Camden site in 1997, not as a full acquisition but as a short-term industrial lease arrangement. The company operated under renewable lease terms with an option to purchase, reflecting the unstable economic and environmental status of the property at the time.²

Unlike earlier phases of industrial ownership—when companies like the Camden Woolen Company or Camden Tanning Company held long-term control—Apollo’s presence was conditional and financially constrained from the beginning. The facility was already a partially modernized industrial plant with outdated infrastructure, including wastewater treatment systems and aging production equipment.

Apollo’s operations continued the site’s long-standing focus on sheepskin tanning and leather finishing, but in a more specialized and limited capacity than earlier industrial periods.

Production Processes and Industrial Activity

During Apollo’s operation, the tannery continued processing animal hides using industrial tanning methods typical of late twentieth-century small-scale leather production. Environmental and engineering assessments of the facility indicate that its process included:

• receipt of pre-treated or “pickled” sheepskins

• removal of salt and residual flesh using water-based processes

• degreasing using industrial solvents

• tanning using chromium-based chemical compounds

• finishing, drying, and coloring of leather products³

By this period, much of the heavy industrial transformation of hides occurred off-site or in earlier processing stages, with Apollo focusing on finishing and refinement rather than full-scale raw hide conversion.

The facility also operated with multiple storage tanks and wastewater systems integrated into or beneath the structure. These systems had been modified over decades of use and contributed to ongoing environmental complexity at the site.⁴

Scale of Operation and Business Structure

Apollo Tanning was a small-scale industrial employer, reflecting the broader decline of manufacturing in New England by the late 1990s. Available documentation indicates:

• approximately 3 employees at the Camden facility

• annual revenues estimated in the low multimillion-dollar range

• operations focused on niche leather processing rather than mass production⁵

This small operational scale contrasted sharply with earlier industrial periods when the site supported larger workforces under textile and earlier tanning companies. Apollo’s business model reflected the broader fragmentation of American manufacturing at the end of the twentieth century.

Environmental and Regulatory Context

When Apollo Tanning began operations, the site already carried a long environmental legacy from previous industrial uses. Decades of wool processing and tanning had introduced contaminants into both soil and groundwater systems along the Megunticook River corridor.

During Apollo’s lease period, regulatory attention focused on the continued use of chemical tanning agents, particularly chromium compounds and solvents associated with leather finishing. Environmental assessments later documented that wastewater systems and underground storage infrastructure were embedded within or beneath the facility, creating potential contamination pathways.⁶

Although Apollo did not originate the site’s environmental problems, its operations occurred during a period of increasing regulatory scrutiny and public awareness regarding brownfield industrial sites in Maine.

Closure and Bankruptcy (1999–2000)

Apollo Tanning ceased operations in April 1999, ending industrial use at the Washington Street tannery site. The closure was followed by financial collapse: the company filed for Chapter 7 bankruptcy in December 2000, formally dissolving its corporate presence.⁷

The shutdown marked the end of continuous industrial activity on the property, which had persisted for more than a century through successive companies. After Apollo’s closure, the facility was left vacant, and the property entered a period of legal and financial uncertainty.

Transition to Municipal Ownership and Post-Industrial Status

Following bankruptcy and abandonment, the property was acquired by the Town of Camden in 2003 through tax foreclosure, as former ownership obligations were no longer met.⁸ The town subsequently assumed responsibility for demolition, environmental assessment, and long-term redevelopment planning.

By the mid-2000s, the industrial structures associated with Apollo and earlier companies were demolished or stabilized, and the site was formally reclassified as a brownfield redevelopment area. EPA-supported cleanup efforts addressed the most heavily contaminated zones by 2008, but residual environmental concerns remained.⁹

From this point forward, the Apollo Tanning era became historically defined not by production, but by its role as the final industrial occupant before municipal transformation.

Historical Significance

Apollo Tanning Ltd. is historically significant not for its scale or longevity, but for its position at the end of an industrial continuum. It represents:

• the final phase of leather tanning in Camden

• the last private industrial use of the Washington Street site

• the transition from industrial economy to municipal land management

• the closure of a production system that began in the nineteenth century

Its brief presence marks the point at which industrial continuity ended and post-industrial redevelopment began.

Conclusion

Apollo Tanning Ltd. functioned as the final operational link in a long chain of industrial activity at the Camden tannery site. Although small in scale and short in duration, its operations completed the historical arc that began with nineteenth-century wool and tanning industries and ended with the cessation of manufacturing in 1999. After its bankruptcy and closure, the site transitioned into public ownership and environmental remediation, setting the stage for its current identity as Tannery Park and surrounding redevelopment discussions.

In this sense, Apollo Tanning is less a standalone industrial enterprise than the concluding chapter of Camden’s river-powered industrial history along the Megunticook corridor.

Footnotes

1. Camden Public Library, Walsh History Center, industrial corridor records for Washington Street and Megunticook River.

2. Maine Department of Environmental Protection, Camden tannery site environmental assessment summary.

3. Environmental Site Assessment Report, Camden Tannery Property, process description sections.

4. Same source; regulatory and infrastructure history of wastewater and storage systems.

5. Archived business listing data for Apollo Tanning Ltd., Camden, Maine (late 1990s records).

6. Maine DEP brownfield documentation and contamination summaries for tannery site.

7. Environmental assessment report; bankruptcy and closure documentation (1999–2000).

8. Town of Camden tax foreclosure and property acquisition records (2003).

9. U.S. EPA brownfield cleanup grant documentation for Camden tannery site (2008).

Bibliography

Camden, Town of. Tannery Property Acquisition and Tax Foreclosure Records (116 Washington Street). Camden Town Office Archives, 2003.

Fessenden Geo-Environmental Services. Site Assessment Report: Camden Tannery Property. Bangor, ME, 1998.

Maine Department of Environmental Protection. Camden Tannery Site Environmental Assessment and Remediation Files. Augusta, Maine, 2000–2008.

Penobscot Marine Museum. Irving Nevells Collection: Camden Tannery Site Documentation (LB2012.17.1751). Searsport, Maine.

U.S. Environmental Protection Agency. Brownfield Cleanup Grant Records: Camden Tannery Site, Washington Street. Washington, D.C., 2007–2008.

Bangor Daily News. “After Decades of Debate, Voters Could Decide Fate of Former Camden Tannery.” December 5, 2020.

Bangor Daily News. “A Former Camden Tannery Embodies Maine’s Fight Over Growth.” July 24, 2022.

Town of Camden. Community Economic Development Advisory Committee (CEDAC) Reports on Tannery Redevelopment. Camden, Maine, 2009–2017.

Tannery Park, Camden, Maine: A Continuous Industrial History of the Megunticook River Corridor (c. 1813–Present)

Introduction

Tannery Park on Washington Street in Camden, Knox County, Maine occupies one of the most historically stratified industrial landscapes along the Megunticook River. What is now a public riverfront space was, for nearly two centuries, a continuously evolving industrial corridor shaped by waterpower, shifting manufacturing technologies, and changing economic regimes. The site’s history cannot be understood through a single company or industry; instead, it is best interpreted as a layered sequence of enterprises that reused the same mill privileges for different forms of production.

From early nineteenth-century tannery activity to specialized plug-and-wedge manufacturing, from woolen textiles to industrial tanning, and finally to municipal ownership and farmers’ market use, the site reflects the broader transformation of rural New England from decentralized craft production to industrial capitalism and ultimately to post-industrial public space.

I. Early Mill Privileges and Proto-Industrial Use (c. 1813–1850s)

The earliest documented industrial activity in the Washington Street corridor dates to the early nineteenth century, when mill privileges along the Megunticook River were developed for small-scale industrial use. In this period, the site that would become Tannery Park was part of a dispersed system of water-powered enterprises including sawmills, gristmills, and early manufacturing shops.

Among the earliest identifiable uses was tannery activity associated with small-scale leather production. These early operations were typical of New England river towns, relying on bark-derived tannins and river access for processing hides. While documentation from this earliest phase is fragmentary, the industrial logic is clear: waterpower, proximity to livestock supply chains, and access to Camden’s growing maritime economy.¹

This early phase established the site as a working industrial landscape, rather than undeveloped land, embedding it in the economic geography of Camden.

II. Gould Plug and Wedge Mill: Specialized Early Manufacturing (c. 1850s–1860s)

By the mid-nineteenth century, the site became associated with the Gould Plug and Wedge Mill, operated by Amasa Gould. This enterprise represents one of the earliest identifiable industrial firms on the Washington Street corridor.

The mill specialized in the production of wooden plugs and wedges, essential components in shipbuilding and wooden construction. Plugs were used to seal fasteners in ship hulls, while wedges were used in structural fitting and timber adjustment. These products connected Camden’s industrial output directly to Maine’s maritime economy.

Production was water-powered and small in scale, characteristic of early industrial enterprises before the rise of large textile corporations. The Gould mill represents a transitional phase between artisanal production and industrial manufacturing, where mechanization began to supplement traditional woodworking labor.²

Although short-lived as an independent enterprise, the Gould mill established the site’s long-term industrial trajectory by anchoring it in mechanized production and river-powered industry.

III. Camden Woolen Company and Textile Industrialization (c. 1870s–early 1900s)

By the late nineteenth century, the Washington Street corridor was absorbed into the expanding textile economy of Camden through the Camden Woolen Company. Sanborn Fire Insurance maps from this period document substantial mill structures, indicating a fully developed industrial facility replacing earlier small-scale enterprises.³

The woolen mill marked a fundamental shift in the site’s function. Where earlier industries were small and specialized, the woolen mill was industrial in scale, organized around wage labor and continuous production. The facility processed raw wool into woven textiles, including coarse cloth and utilitarian fabrics used in regional markets.

The Camden Woolen Company also reshaped the surrounding landscape. Worker housing, transportation routes, and supporting infrastructure developed in proximity to the mill, embedding industrial labor into the daily life of the Washington Street corridor.

This period represents the site’s integration into New England’s broader textile system, linking Camden to regional and national markets.

IV. Camden Tanning Company: Chemical Industry and Environmental Transformation (1953–1990s)

In the mid-twentieth century, as textile manufacturing declined in New England, the site underwent another major transformation with the establishment of the Camden Tanning Company in 1953. This marked a shift from textile production to leather processing, reflecting broader industrial adaptation strategies in declining mill towns.

The tannery processed animal hides using chemical tanning methods, including the use of tanning agents and industrial wastewater systems. This phase introduced a more environmentally intensive form of production than earlier industries, significantly affecting soil and river conditions along the Megunticook River.⁴

The Camden Tanning Company represents the site’s longest sustained industrial phase in the modern era, continuing operations for several decades and maintaining the property as an active industrial facility even as other mills in the region closed.

V. Apollo Tanning Ltd.: Final Industrial Operator (1997–2000)

The final industrial occupant of the site was Apollo Tanning Ltd., which began operations in 1997 under a lease arrangement. By this time, the facility was an aging industrial complex with legacy environmental issues from previous tanning operations.

Apollo continued limited leather processing, focusing on sheepskin tanning and finishing. The operation was small in scale, employing only a few workers and producing specialized leather products rather than large-scale industrial output.⁵

In 1999, Apollo ceased operations amid financial and operational difficulties. The company filed for bankruptcy in 2000, marking the end of continuous industrial activity on the site after nearly two centuries.

Apollo’s closure represents the definitive end of Camden’s Washington Street industrial corridor as a production site.

VI. Municipal Acquisition and Environmental Transition (2000s)

Following the closure of Apollo Tanning, the property entered municipal ownership through tax foreclosure. The Town of Camden assumed control of the site in the early 2000s, initiating environmental assessment and remediation efforts.

The site was identified as a brownfield due to long-term industrial contamination associated with tanning and earlier manufacturing activities. Cleanup efforts included soil stabilization, removal of hazardous materials, and environmental monitoring.⁶

This transition marked a fundamental shift in land use: from industrial production to public environmental management.

VII. Tannery Park and Post-Industrial Civic Use (1974–Present)

Even before full municipal redevelopment, the site and surrounding corridor began to be used for civic and community purposes. Most significantly, the Camden Farmers’ Market, established in 1974, has periodically operated in the Washington Street area, including the Tannery Park site.⁷

The farmers’ market represents a symbolic and functional transformation of the landscape. Where industrial production once dominated, seasonal agricultural commerce now defines the space. Vendors selling produce, baked goods, and artisan products occupy the former industrial ground, reactivating the site as an economic and social hub.

In its current form, Tannery Park functions as:

• a public green space

• a seasonal farmers’ market venue

• a riverfront access area

• a planning site for ongoing redevelopment discussions

The industrial past remains visible in the landscape, but the site now operates primarily as civic infrastructure rather than manufacturing space.

Conclusion

The history of Tannery Park is not the history of a single company or industry, but a continuous sequence of adaptation along the Megunticook River. From early tannery activity to Gould’s plug and wedge manufacturing, from woolen production to industrial tanning, and finally to Apollo Tanning’s closure and municipal redevelopment, the site demonstrates how industrial landscapes evolve rather than disappear.

Today, Tannery Park stands as a layered historical environment where each phase of use remains embedded in the physical and cultural fabric of Camden. Its transformation into a public space and farmers’ market reflects not the erasure of industrial history, but its repurposing into a new civic form.

Footnotes

1. Camden Public Library, Walsh History Center, Megunticook River mill privilege records.

2. Town of Camden historical summaries of Amasa Gould plug and wedge manufacturing operations.

3. Sanborn Fire Insurance Maps, Camden, Maine, late nineteenth-century industrial survey series.

4. Maine Department of Environmental Protection, Camden tannery site environmental summaries.

5. Archived municipal and business records for Apollo Tanning Ltd., Camden, Maine (1997–2000).

6. Town of Camden, brownfield remediation and tax foreclosure records for Washington Street property.

7. Camden Farmers’ Market historical documentation, Camden, Maine (est. 1974).

Bibliography

Camden Public Library. Walsh History Center. Megunticook River Industrial Records. Camden, Maine.

Maine Department of Environmental Protection. Camden Tannery Site Environmental Assessment Files. Augusta, Maine.

Sanborn Fire Insurance Maps. Camden, Maine. Late nineteenth-century industrial series.

Town of Camden. Brownfield Remediation and Property Acquisition Records (Washington Street / Tannery Park). Camden, Maine.

Camden Farmers’ Market. Historical and Organizational Records. Camden, Maine.