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
Calvin Coolidge with the massive electoral victory, led to suggestions that Coolidge run for president in 1920. By the time Coolidge was inaugurated on January 2, 1919, the First World War had ended, and Coolidge pushed the legislature to give a $100 bonus () to Massachusetts veterans. He also signed a bill reducing the work week for women and children from fifty-four hours to forty-eight, saying, "We must humanize the industry, or the system will break down." He signed into law a budget that kept the tax rates the same, while trimming $4 million from expenditures, thus allowing the state to retire