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 State Park Coolidge State Park Coolidge State Park is a Vermont State Park located in Plymouth, Vermont, United States. The park is named after Calvin Coolidge, the 30th President of the United States, who was born and raised in Plymouth and is buried there as well. It is the primary recreational center for Calvin Coolidge State Forest, the largest state forest in Vermont. The park's facilities, built by the Civilian Conservation Corps (CCC) in the 1930s, are listed on the National Register of Historic Places. Activities in the park include camping, hiking, picnicking, mountain biking, stream fishing, wildlife watching and winter sports.