JJames W. Tallmadge (1843-1904) was born in Albany, New York, and died in Boston, Massachusetts. He served as a private in Company H, 18th New York Infantry, in the American Civil War. After the war he worked as a real estate broker, a machinist, and an inventor. In 1866 he married Anna Tallmadge (b. Beams) in Schodack, New York. She died in 1872, and in 1873 he married Laura A. Tallmadge (b. Willis) in Jamaica, Massachusetts. They lived in several places in New York, including Schodack, New York City, and Stanford, before moving to Boston sometime in the 1880s. There Tallmadge went into business selling a chemical ink eraser he had invented. He also invented a squirt can and an acetylene gas generator for industrial purposes. In 1888 Tallmadge wrote to Mary Baker Eddy's secretary, Calvin A. Frye, to promote his inking attachment device for Hammond typewriters.

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