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
Coolidge Homestead present size and appearance today. Despite living most of his life in Northampton, Massachusetts, Calvin Coolidge often returned to the homestead to visit his family, and he was staying there when President Warren G. Harding died. Coolidge was sworn in by his father in the family parlor after taking the Oath of Office for the presidency. Due to his father's refusal to modernize the house it remains in the same condition, and in some cases with the same furnishings, as it was the night Coolidge took the oath. The Inaugural Room itself is behind glass, but a visitor can stand