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 Calvin Coolidge House The Calvin Coolidge House is a historic house located at 19-21 Massasoit Street in Northampton, Massachusetts. Built in 1901, it is most historically significant as the home of President of the United States Calvin Coolidge between 1906 and 1930, the height of his political career. It was listed on the National Register of Historic Places on December 12, 1976. The Calvin Coolidge House is located in a quiet residential area west of downtown Northampton, on the east side of Massasoit Street near its junction with Arlington Street. It is an architecturally undistinguished 2-1/2 story two-family wood-frame structure,