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
First inauguration of Calvin Coolidge First inauguration of Calvin Coolidge The first inauguration of Calvin Coolidge as the 30th President of the United States was held on Friday, August 3, 1923 at the Coolidge Homestead in Plymouth Notch, Vermont, following the death of President Warren G. Harding the previous evening. The inauguration marked the commencement of the first term (a partial term of ) of Calvin Coolidge as President. The presidential oath of office was administered to the new president by his father, John Calvin Coolidge Sr., who was a Vermont notary public and justice of the peace. Vice President Coolidge was visiting his family