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 lost the general election to Coolidge's 1920 vice presidential Democratic opponent Franklin D. Roosevelt in a landslide. Coolidge died suddenly from coronary thrombosis at "The Beeches," at 12:45 p.m., January 5, 1933. Shortly before his death, Coolidge confided to an old friend: "I feel I no longer fit in with these times." Coolidge is buried in Plymouth Notch Cemetery, Plymouth Notch, Vermont. The nearby family home is maintained as one of the original buildings on the Calvin Coolidge Homestead District site. The State of Vermont dedicated a new visitors' center nearby to mark Coolidge's 100th birthday on July 4, 1972.