Bruce Sinclair, for more than fifty years a vital presence in the Society for the History of Technology, passed away at his home in Point Richmond, California, on March 15, 2025. Bruce and his twin brother Jerry were born in 1929, the last two of five children. In the mid-1930s, Bruce’s parents settled in Vallejo, California, and then in nearby Napa, where his father Bert was a partner in the Berry & Sinclair Photography Studio. Soon the pull of a thriving shipbuilding mecca brought the family to Richmond, and where Bruce graduated from high school.
In 1950, his further education begun at The University of California, was interrupted when Bruce enlisted in the Air Force in the midst of the Korean War. He served primarily in electronic countermeasures, monitoring Soviet nuclear testing from occupied Japan and later U.S. nuclear testing in Nevada.
Upon his discharge from the Air Force, Bruce returned to college in Berkeley, earning a bachelor’s degree there, then a master’s degree from New Mexico Highlands University–a school beautifully sited at the base of New Mexico’s Sangre de Christo mountains–and then a second master’s from the University of Delaware’s new Hagley Program in Industrial History. In 1956 Bruce met and married Christine Roen, and they had two children, Alan and Margaret. For two years beginning in 1957 Bruce served as a fellow with the Hagley Foundation, and in 1959 he was engaged by the North Andover Historical Society in Massachusetts to survey its collection of historic textile machinery and its manuscript holdings, and to set forth plans for their preservation and display.
In his report, Bruce called for the establishment of a museum and archive focused on the American textile industry and for it to be administered separately from the historical society. His recommendations were accepted, and–with his Hagley degree in hand–in 1960 Bruce was appointed the founding director of the Merrimack Valley Textile Museum (later to be renamed the American Textile History Museum). Bruce stayed in North Andover until 1964, when he elected to pursue a doctorate at Case Western University in Cleveland, where there was a new program in the History of Technology headed by one Melvin Kranzberg. Bruce’s Case mentors were Mel Kranzberg and Edwin Layton, and at UC Santa Barbara his friend Carroll Pursell played a critic’s role as well. Kranzberg, Layton, Pursell–all three were names to be reckoned with in this burgeoning new field of inquiry, History of Technology.
Bruce’s studies impelled him into a lifelong engagement with History of Technology. With his new doctorate he first went out to Kansas State University, where he eventually became chair of the history department, and then in 1969 he accepted a position at the Institute for the History and Philosophy of Science and Technology at the University of Toronto, where he also became chair. For Bruce,1988 was a banner year. He and Gail Ann Cooper, a former student of Pursell’s, were married, and at the Georgia Institute of Technology Bruce was named the Melvin Kranzberg Professor for the History of Technology, charged with guiding the development of a new program at Tech.
Bruce’s scholarship had admirable range. Two early landmarks were his article titled “At the Turn of a Screw: William Sellers, the Franklin Institute, and a Standard American Thread,” and his book titled Philadelphia’s Philosopher Mechanics: A History of the Franklin Institute1824-1865, which won SHOT’s Dexter Prize in 1974 and which Bob Post called “the first and finest monograph by a scholar trained in the history of technology.” Similarly, Bruce’s Centennial History of the American Society of Mechanical Engineers 1880-1980 became a model in the world of public history, and in 2004 his Technology and the African American Experience moved boldly into a different field of inquiry.
In the late 1980s Bruce served a term as SHOT’s president, and in 1995 he was awarded the society’s Leonardo da Vinci Medal for his stellar career as a scholar, teacher, and museum professional. Beyond his formal SHOT honors, it should also be said that Bruce was a friend and mentor to many, many young and upcoming scholars. He spent much of the early 21st century in Bethlehem, Pennsylvania, where Gail was a Professor of the History of Technology at Lehigh University. Bruce and Gail eventually settled in a cozy waterside condo in Vallejo, but meanwhile both of them served as fellows at the Dibner Institute in Cambridge, Massachusetts. Bruce’s final honor was his award of a fellowship at the Smithsonian’s new Lemelson Center for the Study of Invention and Innovation.
Everyone who knew him well considered Bruce to be an intrepid sailor. With Mary Pickard Winsor, the University of Toronto historian who was then his wife, Bruce often cruised Parry Sound, on the eastern edge of Canada’s Georgian Bay. He sailed alone to the Bahamas and back, this in homage to his son Alan, who died at the age of 23. After the move to California, he grew especially fond of two watercraft that he and Gail often sailed on San Francisco Bay, Pretty Penny and The Shadow, sister ships built to a Gary Mull design. In 2008, I had the great good fortune of having Bruce’s company as my first mate when I sailed from Annapolis, Maryland, to Oriental, North Carolina. And I still have his handwritten log of that trip. There is “nothing finer,” wrote Bruce, than “messing about on boats.” His victory in a San Francisco Bay sailboat race in the honored Lipton Cup Series—this at the age of eighty—was a joyous attainment indeed.
Bruce is survived by his daughter, Margaret Vargas, and his grandchildren and great grandchildren, as well as by Gail, his beloved wife of 36 years. His siblings left him many nieces and nephews who remember their Uncle Bruce ever so fondly. And not least, Bruce will be remembered and sorely missed by all his scholarly colleagues and by sailors everywhere.
James Williams
Dr. Williams, Professor Emeritus at De Anza College in California, retired with his wife Penelope in Punta Gorda, on the Gulf Coast of Florida.
Cooper, Gail, and Bruce Sinclair. “Failed Innovations—ICOHTEC Symposium, Hamburg, August 1989.” Technology and Culture 31, no. 3 (1990): 496–99. https://doi.org/10.1353/tech.1990.0014.
Sinclair, Bruce. A Centennial History of the American Society of Mechanical Engineers 1880–1980. University of Toronto Press, 1980. https://doi.org/10.3138/9781487572402.
Sinclair, Bruce. “American Science in the Age of Jackson by George H. Daniels (Review).” Technology and Culture 10, no. 1 (1969): 101–2. https://doi.org/10.1353/tech.1969.a892328.
Sinclair, Bruce. “An Agenda for SHOT.” Technology and Culture 30, no. 3 (1989): 596–600. https://doi.org/10.1353/tech.1989.0046.
Sinclair, Bruce. “At the Turn of a Screw: William Sellers, the Franklin Institute, and a Standard American Thread.” Technology and Culture 10, no. 1 (1969): 20–34. https://doi.org/10.1353/tech.1969.a892312.
Sinclair, Bruce. “Canadian Technology: British Traditions and American Influences.” Technology and Culture 20, no. 1 (1979): 108–23. https://doi.org/10.2307/3103114.
Sinclair, Bruce. “Charles Ellet, Jr.: The Engineer as Individualist, 1810–1862 by Gene D. Lewis (Review).” Technology and Culture 11, no. 3 (1970): 446–47. https://doi.org/10.1353/tech.1970.a894115.
Sinclair, Bruce. “John W. Abrams (1913–1981).” Technology and Culture 23, no. 3 (1982): 527–30. https://doi.org/10.1353/tech.1982.a891219.
Sinclair, Bruce. “Local History and National Culture: Notions on Engineering Professionalism in America.” Technology and Culture 27, no. 4 (1986): 683–93. https://doi.org/10.2307/3105324.
Sinclair, Bruce. “Mechanical Engineering at the National Research Council of Canada, 1929–1951 by W. E. Knowles Middleton (Review).” Technology and Culture 27, no. 2 (1986): 314–15. https://doi.org/10.2307/3105162.
Sinclair, Bruce. “Scientific Societies in the United States by Ralph S. Bates (Review).” Technology and Culture 7, no. 4 (1966): 544–46. https://doi.org/10.2307/3101872.
Sinclair, Bruce. Technology and the African-American Experience: Needs and Opportunities for Study. MIT Press, 2004. https://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&db=nlabk&AN=122551.
Sinclair, Bruce. “The American System of Manufactures: The Report of the Committee on Machinery of the United States, 1855, and the Special Reports of George Wallis and Joseph Whitworth, 1854 Ed. by Nathan Rosenberg (Review).” Technology and Culture 13, no. 1 (1972): 87–91. https://doi.org/10.2307/3102672.
Sinclair, Bruce. “The Battle over Hetch Hetchy: America’s Most Controversial Dam and the Birth of Modern Environmentalism (Review).” Technology and Culture 47, no. 2 (2006): 444–45. https://doi.org/10.1353/tech.2006.0153.
Sinclair, Bruce. “The Papers of Alexander Hamilton Ed. by Harold C. Syrett, Jacob E. Cooke (Review).” Technology and Culture 11, no. 3 (1970): 444–45. https://doi.org/10.1353/tech.1970.a894114.
Sinclair, Bruce. “The Road to Madison and Back: Notes from a Traveler.” Technology and Culture 36, no. 2 (1995): S3–16. https://doi.org/10.1353/tech.1995.0002.
Sinclair, Bruce. “The Tancook Whalers: Origins, Rediscovery, and Revival by Robert C. Post (Review).” Technology and Culture 29, no. 2 (1988): 307–8. https://doi.org/10.1353/tech.1988.0170.