Water, Island, and Machine: The Mill Race, Great/Mill Island, and the Early Topsham Paper Company, c. 1868

Introduction

In the late nineteenth century, Maine's rivers were more than waterways. They were sources of mechanical energy, transportation routes, industrial boundaries, and the foundation of entire communities. At Topsham, the Androscoggin River performed all of these functions at once. The construction of the Topsham Paper Company mill in 1868 at Brunswick Falls brought together three elements that were transforming Maine industry: the hydraulic power of the Androscoggin, the strategic location of Great or Mill Island, and new machinery for converting wood into pulp.¹

The mill's importance extended beyond the manufacture of paper. The Topsham operation was among the earliest commercial groundwood-pulp enterprises in Maine. Charles D. Brown and E. B. Denison had begun experimenting with wood pulp in the basement of a sawmill before constructing the larger mill in 1868. Their first grinders were Taft grinders reportedly manufactured at the Bath Iron Works.² Thus, the history of the Topsham mill is also the story of an emerging industrial system in which Maine's forests supplied the raw material, Bath supplied specialized machinery, and the Androscoggin supplied the power.

Understanding the "Mill Race, Androscoggin River, Main Street, Topsham" requires seeing the landscape as an integrated machine. The river supplied energy; the race or channel controlled and directed water; the island provided a strategic industrial site; shafts, wheels, belts, and gears transformed hydraulic energy into mechanical motion; and the Taft grinders transformed wood into fiber. The importance of Great/Mill Island therefore lay not simply in its location beside the river but in its position within this interconnected system.

Great/Mill Island and the Industrial Geography of Topsham

The site of the Topsham Paper Company was the product of a much older industrial geography. The falls between Brunswick and Topsham had been used as a source of waterpower since the eighteenth century. The National Register documentation for the surviving Pejepscot Paper Company mill describes the 1868 complex as being "dramatically sited" at Brunswick Falls on the Androscoggin River and identifies the location as a water-power site with a history extending back to the eighteenth century.³

Topsham's relationship with the river was equally important for transportation. Timber from the interior of Maine moved down the Androscoggin, and early Topsham developed around river-based industries. The town's later comprehensive plan notes that access to the river was essential for moving cut timber to downstream mills and for transportation before an adequate road system existed.⁴ The river therefore supplied both the energy and much of the economic environment in which Topsham's industries developed.

By 1868, the industrial landscape had become substantially more complex. Topsham's first large brick mill was constructed on the mill island for the Bowdoin Paper Company in that year, later becoming associated with the Pejepscot Paper Company.⁵ The brick mill was an imposing structure, approximately 225 to 250 feet long and 65 feet wide, with a three-story main building and a two-story extension.⁶ Its scale demonstrates that Great/Mill Island was not merely a convenient piece of land. It was a deliberately chosen industrial site capable of supporting a large manufacturing operation immediately adjacent to the river and its falls.

The island's location also provided a physical relationship between different portions of the river's flow. In nineteenth-century water-powered industry, islands could be especially useful because channels could be manipulated to direct water toward machinery and then carry it away. The precise arrangement of the 1868 Topsham race and hydraulic works cannot, however, be reconstructed with certainty from the sources presently available. It is therefore important not to confuse later dams and hydraulic improvements with the original 1868 arrangement. What can be said with confidence is that the mill was deliberately located at the falls, on an island within the river system, because of the site's established water-power advantages.⁷

The Mill Race as an Industrial Machine

The term "mill race" describes an essential component of nineteenth-century waterpower. A race was a controlled channel through which water could be conveyed toward or away from a mill. Its purpose was not simply to move water but to make the river's energy usable.

The fundamental engineering principle was the creation and control of a difference in elevation, or "head." Water held at a higher elevation possessed potential energy. As it moved downward through a controlled channel, that potential energy became kinetic energy. The moving water could then act upon a wheel, turbine, or other hydraulic device and produce rotary mechanical motion.

Maine's surviving mill systems demonstrate how this worked. Water entering a canal could be carried through channels at different elevations until it reached the mill, where it passed through openings and acted upon buckets or paddles attached to a wheel. The wheel turned an axle, and gears and belts transferred that motion to machinery throughout the building.⁸

The mill race was therefore analogous to an energy-delivery system. It gathered or diverted water from the river, controlled its movement, and brought it to the point where its energy could be converted into mechanical work. After passing through the wheel or hydraulic machinery, the water could continue through a tailrace and return to the river downstream.

A simplified representation of the system is:

Androscoggin River → controlled channel or race → hydraulic machinery → rotating shaft → belts and gears → manufacturing machinery → tailrace → river

This distinction is important when interpreting an image labeled "Mill Race." The race itself did not manufacture anything. Its importance was that it made the river's energy available to the machines inside the mill.

At Topsham, the hydraulic setting was especially valuable because the mill stood at Brunswick Falls. The National Register documentation explicitly identifies the site as one historically used for waterpower.⁹ A later state industrial report likewise lists the Bowdoin Paper Manufacturing Company at Topsham as using waterpower, with the mill established in 1868. By 1907, that plant was reported to have 828 horsepower of waterpower.¹⁰ The later figure should not be projected backward onto 1868, but it demonstrates the continuing importance of hydraulic energy to the site.

From Waterpower to Mechanical Motion

Once water reached the mill's power machinery, the challenge was to distribute the resulting mechanical energy to the machines.

Nineteenth-century mills commonly used a water wheel connected to shafts, gears, pulleys, and leather belts. The wheel rotated an axle, and the axle transmitted motion into the building. At different floors, shafts and pulleys could distribute power to individual machines. A machine could be started or stopped by engaging or releasing its belt.¹¹

The significance of this arrangement becomes clearer when considering the size of the Topsham mill. The large brick structure was not simply a room containing one machine. It was an integrated industrial building in which numerous operations could be powered by the same basic source of energy.

The river, therefore, entered the factory conceptually as a form of mechanical power. The water did not merely wash wood or supply workers with water. Its energy was transformed into rotation, and rotation became industrial production.

This was the central technological relationship between Great/Mill Island and the Androscoggin. The island placed the factory where the hydraulic resource was most useful, while the mill's machinery converted that natural energy into work.

The Taft Wood Grinders

The most important machines associated with the early Topsham groundwood operation were the Taft grinders. The evidence for their connection to Topsham is unusually specific.

A 1907 report by Maine's Commissioner of Industrial and Labor Statistics described the first commercial groundwood-pulp operation in Maine as having begun at Topsham in 1868 or 1869 in the basement of a sawmill operated by Charles D. Brown and E. B. Denison. The report states that the first grinders used by Brown and Denison were Taft grinders, reportedly made at the Bath Iron Works. It also states that the patents had been purchased from General Hyde. The early operation produced approximately one ton of pulp in twenty-four hours, with the product selling for approximately seven cents per pound.¹²

The 1911 state report confirms this account. It identifies the first commercial groundwood-pulp mill in Maine as the Topsham operation begun by Brown and Denison in 1868 or 1869 and identifies the first machines as Taft grinders made, according to the report, at the Bath Iron Works.¹³

The National Register documentation independently confirms that the Topsham Paper Company used grinders from the machine shop of the Bath Iron Works. It also identifies the mill as one of Maine's earliest wood-pulp mills and emphasizes the importance of its early adoption of the groundwood process.¹⁴

Bath Iron Works' role is therefore significant because it connected the Topsham experiment with Maine's developing machine-building industry. The paper mill depended upon a specialized mechanical technology, and that technology was manufactured locally rather than imported as a complete foreign system.

How a Wood Grinder Worked

The groundwood process was mechanically straightforward in principle but demanding in practice. Wood was brought against a rapidly rotating grinding stone. Friction between the wood and the abrasive surface separated the wood into fibers. Water was present in large quantities, both to cool the grinding process and to carry the newly produced fibers away from the grinder as a pulp suspension.¹⁵

The basic sequence can be represented as:

wood → pressure against rotating grindstone → friction and fiber separation → water carries fibers away → groundwood pulp

The grinder was therefore a mechanical transformation device. The wood entered as a solid material and left as a suspension of fibers in water.

The process also explains why mechanical power was so important. Grinding wood against a stone required continuous rotary motion and considerable force. The waterpower system and the grinder were thus technologically interdependent. The river did not merely provide the setting for the grinder; it supplied the energy that allowed the machine to perform its work.

The earliest grinders differed in form from modern groundwood machinery, but the basic principle remained recognizable. Later descriptions of the process explain that logs were pressed against a rapidly revolving grindstone, with water serving as both coolant and carrier for the pulp.¹⁶ The early Topsham machinery should not be assumed to have been identical to later grinders, but the underlying principle helps explain what the Taft machine accomplished.

The Bath–Topsham Connection

The Taft grinder illustrates an important feature of nineteenth-century industrialization: technological change depended upon networks rather than isolated inventions.

The new wood-pulp process had emerged from experimentation in Europe and North America. Groundwood pulp had been produced commercially in Massachusetts in 1867, and experiments soon followed in Maine. Within a year or two, Brown and Denison were producing groundwood pulp commercially at Topsham.¹⁷

The Taft grinder brought this new process into a form usable by a Maine mill. Bath Iron Works supplied the machinery; the Androscoggin supplied the power; Great/Mill Island supplied the industrial location; and Maine's forests supplied the raw material.

The resulting system was distinctly regional:

Maine forests → wood → Topsham → Taft grinders → groundwood pulp → paper

beneath it was the hydraulic system:

Androscoggin River → mill race and hydraulic works → wheel or other power machinery → shafts and belts → Taft grinders

These two systems met inside the mill.

Great/Mill Island as the Point of Convergence

The importance of Great/Mill Island becomes most apparent when these elements are considered together. Its value lay in the convergence of resources.

First was waterpower. The island was located at a historic water-power site at Brunswick Falls. Second was industrial space. The island accommodated a substantial brick mill and associated structures. Third was access to the river, which was important to the movement of timber and other materials. Fourth was proximity to Maine's forest resources, which made wood an increasingly attractive raw material for the emerging pulp industry.

The island thus became an industrial platform where natural energy, raw materials, machinery, labor, and transportation could be concentrated.

This helps explain why the Topsham mill occupies such an important place in Maine's industrial history. The National Register identifies its use of the groundwood process as an early development in an industry that would become enormously important to Maine during the twentieth century.¹⁸ The mill was consequently important not merely because it made paper but because it demonstrated a new relationship between Maine's forests and rivers.

The Mill Race in Historical Perspective

Seen from this perspective, the mill race was part of a larger transformation of the landscape.

A natural river consists of flowing water. An industrial river is different. Dams, races, canals, gates, wheels, mills, bridges, warehouses, and roads transform the river into an organized production system.

The Androscoggin at Topsham became such a system over generations. Earlier sawmills and other enterprises had already established the falls as an industrial center. The 1868 paper mill extended that industrial use into a new technological field: wood pulp and paper.

The race was therefore a form of industrial infrastructure. It represented the conversion of a natural resource into controlled mechanical energy.

The same principle can be seen elsewhere in Topsham. The town's historical development included channels and industrial canals that redirected water to power mills, demonstrating how the landscape around the Androscoggin was repeatedly engineered for industrial purposes.¹⁹ However, these earlier channels should not automatically be identified with the specific hydraulic arrangement serving the 1868 paper mill. The historical record supports the larger water-power context much more strongly than it supports a detailed reconstruction of every channel.

That distinction is important because the surviving landscape reflects many generations of industrial modification. The river system changed, mills changed, and hydraulic infrastructure changed. The safest interpretation is therefore to regard the Mill Race as part of the broader tradition of controlled waterpower that made Great/Mill Island an exceptionally valuable industrial location.

Conclusion

The story of the Topsham Paper Company in 1868 can be understood as the meeting of water, land, machinery, and wood.

The Androscoggin River supplied the energy. The falls supplied the necessary elevation and hydraulic force. The mill-race system represented the controlled movement of that water toward the machinery. Great/Mill Island provided a strategic site where the river's power could be converted into mechanical work. Shafts, gears, pulleys, and belts distributed that power through the mill. Finally, the Taft grinders, manufactured at the Bath Iron Works, used the mechanical energy to reduce wood to groundwood pulp.

The importance of Bath Iron Works was therefore not separate from the importance of the river. The two belonged to the same technological system. A sophisticated machine was useless without power, while abundant waterpower had little industrial value without machinery capable of converting it into useful work.

At Topsham, these resources came together at Great/Mill Island. The result was one of Maine's earliest commercial groundwood-pulp operations and an important early chapter in the state's transformation from a forest-and-river economy into a major pulp-and-paper industry. The Mill Race, the island, the Androscoggin, and the Taft grinder should therefore be understood not as separate historical objects but as components of a single industrial landscape.

The historical significance of the site ultimately lies in this relationship. The river was the source of energy; the race controlled it; the island housed the enterprise; Bath Iron Works provided specialized machinery; and the forest provided the raw material. Together they formed a nineteenth-century manufacturing system in which the natural power of the Androscoggin was converted into mechanical energy and, ultimately, into paper.

Footnotes

1. United States Department of the Interior, National Park Service, National Register of Historic Places Inventory—Nomination Form: Pejepscot Paper Company, 1974, sec. 7, p. 1; sec. 8, p. 1.

2. Maine, Commissioner of Industrial and Labor Statistics, Thirteenth Annual Report of the Commissioner of Industrial and Labor Statistics for the State of Maine, 1907, 162.

3. National Park Service, National Register of Historic Places Inventory—Nomination Form: Pejepscot Paper Company, sec. 8, p. 1.

4. Town of Topsham, Topsham Comprehensive Plan Update 2019, April 8, 2019, 15.

5. Town of Topsham, Topsham Comprehensive Plan Update 2019, 15.

6. George Augustus Wheeler and Henry Warren Wheeler, History of Brunswick, Topsham, and Harpswell, Maine, Including the Ancient Territory Known as Pejepscot (Boston: Alfred Mudge & Son, 1878), 608.

7. National Park Service, National Register of Historic Places Inventory—Nomination Form: Pejepscot Paper Company, sec. 7, p. 1; sec. 8, p. 1.

8. Maine MILL, “Innovations in Energy,” n.p.; Maine Department of Agriculture, Conservation and Forestry, Bureau of Parks and Lands, “Water Power at the Mayall Mills,” n.p.

9. National Park Service, National Register of Historic Places Inventory—Nomination Form: Pejepscot Paper Company, sec. 8, p. 1.

10. Maine, Commissioner of Industrial and Labor Statistics, Thirteenth Annual Report, 1907, 153.

11. Maine Department of Agriculture, Conservation and Forestry, Bureau of Parks and Lands, “Water Power at the Mayall Mills,” n.p.

12. Maine, Commissioner of Industrial and Labor Statistics, Thirteenth Annual Report, 1907, 162.

13. Maine, Commissioner of Industrial and Labor Statistics, Seventeenth Annual Report of the Commissioner of Industrial and Labor Statistics for the State of Maine, 1911, 34.

14. National Park Service, National Register of Historic Places Inventory—Nomination Form: Pejepscot Paper Company, sec. 8, p. 1.

15. U.S. Environmental Protection Agency, Development Document for Effluent Limitations Guidelines and Standards for the Pulp, Paper and Paperboard and the Builders' Paper and Board Mills, “Stone Groundwood Pulping,” A-9.

16. U.S. Environmental Protection Agency, Development Document for Effluent Limitations Guidelines and Standards for the Pulp, Paper and Paperboard and the Builders' Paper and Board Mills, A-9.

17. Maine, Commissioner of Industrial and Labor Statistics, Thirteenth Annual Report, 1907, 162.

18. National Park Service, National Register of Historic Places Inventory—Nomination Form: Pejepscot Paper Company, sec. 8, p. 1.

19. Town of Topsham, Topsham Comprehensive Plan Update 2019, 15.

Bibliography

Maine, Commissioner of Industrial and Labor Statistics. Seventeenth Annual Report of the Commissioner of Industrial and Labor Statistics for the State of Maine. Augusta: Kennebec Journal Print, 1911.

———. Thirteenth Annual Report of the Commissioner of Industrial and Labor Statistics for the State of Maine. Augusta: Kennebec Journal Print, 1907.

National Park Service. National Register of Historic Places Inventory—Nomination Form: Pejepscot Paper Company. United States Department of the Interior. 1974.

Town of Topsham. Topsham Comprehensive Plan Update 2019. Topsham, Maine, 2019.

U.S. Environmental Protection Agency. Development Document for Effluent Limitations Guidelines and Standards for the Pulp, Paper and Paperboard and the Builders' Paper and Board Mills. Washington, DC: U.S. Environmental Protection Agency.

Wheeler, George Augustus, and Henry Warren Wheeler. History of Brunswick, Topsham, and Harpswell, Maine, Including the Ancient Territory Known as Pejepscot. Boston: Alfred Mudge & Son, 1878.