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 House period of occupancy coincides with Coolidge's political rise from city council to Governor of Massachusetts, then Vice President and President. In 1930, Coolidge moved to "The Beeches" at 16 Hampton Terrace in Northampton, a move he said was necessitated by the increasing number of tourists coming to this address and the attendant lack of privacy. This property is one of the most unusual of those occupied by a US president on a long-term basis, in that he did not own it, and that it was a duplex. Calvin Coolidge House The Calvin Coolidge House is a historic house located at