SS President Coolidge Newport News, Virginia built the two ships, completing "President Hoover" in 1930. The keel for "President Coolidge" was laid 22 April 1930 and the ship was delivered 1 October 1931. They were the largest merchant ships built in the United States up to that time. Each ship had turbo-electric transmission, with a pair of steam turbo generators generating current that powered propulsion motors on the propeller shafts. Westinghouse built the turbo generators and propulsion motors for "President Coolidge" but General Electric built the turbo generators and propulsion motors for "President Hoover". In the "President Coolidge" twelve Babcock & Wilcox superheater
Richard B. Coolidge of Representatives, where he served as the clerk of the judiciary committee. Coolidge served as the mayor of Medford, Middlesex County, Massachusetts, United States, from 1923 to 1926. He later served as a delegate to the Republican National Convention from Massachusetts in 1928. Coolidge died in Concord, Massachusetts in 1957. Richard B. Coolidge Richard Bradford Coolidge (September 14, 1879 – January 18, 1957) was a Massachusetts politician. Coolidge was born in the Deering Center area of Portland, Maine. He was brother of Massachuestts politician and Lieutenant Governor Arthur W. Coolidge. He was the fourth cousin of President Calvin Coolidge. Coolidge