Frank Stephen Baldwin

Frank Stephen Baldwin
Frank Stephen Baldwin
Born	April 10, 1838; New Hartford, Connecticut
Died	April 8, 1925 (aged 86); Denville, New Jersey
Known for	calculating machine
Spouse	Mary K. Denniston (Sept. 23, 1848 – July 15, 1928)
Children	Frank Pardee Baldwin (Oct. 1, 1873 – March 16, 1946); Emma Virginia Baldwin (Feb. 14, 1877 – Feb. 25, 1952); Eugene Denniston Baldwin (1880–?); George Howard Baldwin (1890–1950); Elbert Stephen Baldwin (Jan. 5, 1882 – June 10, 1956); Lillian Isabel Baldwin (June 2, 1886 – May 23, 1916); Blanche Baker Baldwin (July 28, 1891-Nov. 22, 1969)

Frank Stephen Baldwin (April 10, 1838 – April 8, 1925) was an American who invented a pinwheel calculator in 1875. He started the design of a new machine in 1905 and was able to finalize its design with the help of Jay R. Monroe who eventually bought the exclusive rights to the machine and started the Monroe Calculating Machine Company to manufacture it.^[1]

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Frank Stephen Baldwin

Born	(1838-04-10)April 10, 1838 New Hartford, Connecticut
Died	April 8, 1925(1925-04-08) (aged 86) Denville, New Jersey
Known for	calculating machine
Spouse	Mary K. Denniston (Sept. 23, 1848 – July 15, 1928)
Children	Frank Pardee Baldwin (Oct. 1, 1873 – March 16, 1946) Emma Virginia Baldwin (Feb. 14, 1877 – Feb. 25, 1952) Eugene Denniston Baldwin (1880–?) George Howard Baldwin (1890–1950) Elbert Stephen Baldwin (Jan. 5, 1882 – June 10, 1956) Lillian Isabel Baldwin (June 2, 1886 – May 23, 1916) Blanche Baker Baldwin (July 28, 1891-Nov. 22, 1969)