SS President Coolidge motors ranged from a tenth horsepower to the 13,250 horsepower main motors. The ship had refrigerated cargo space. "President Coolidge" was initially designed for 350 first class, 150 "special" or intermediate class passengers with space for 1,260 passengers of all classes and a crew of 300. The ship was launched on 21 February 1931 after Mrs. Calvin C. Coolidge broke a bottle of water that came from a brook on the Coolidge farm in Vermont on the bow. "President Hoover" and "President Coolidge" ran between San Francisco and Manila via Kobe and Shanghai, and some round the World voyages that
SS President Coolidge debt, and in June 1938 "President Coolidge" was arrested for an unpaid debt of $35,000. She was released in bond for a final trans-Pacific voyage, and then Dollar Lines was suspended from operation. In August 1938 the United States Maritime Commission reorganised the company as American President Lines, which then ran the former Dollar Lines fleet until the Second World War. In March 1939 "President Coolidge" was the last ship to sight the custom-built Chinese junk "Sea Dragon", built and sailed by American explorer Richard Halliburton, before she disappeared in a typhoon some west of the Midway Islands. As relations