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
John Calvin Coolidge Sr. of the peace and a notary public, administered the presidential oath of office to his son at the Coolidge Homestead in Plymouth Notch, Vermont, at about 2:30 a.m. on August 3, 1923. John Calvin Coolidge Sr. died in Plymouth, Vermont on . He was buried at Plymouth Notch Cemetery. In 1868, Coolidge married Victoria Josephine Moor (b. 1850). They were the parents of two children, son Calvin, and daughter Abigail (1875-1890). Victoria Coolidge died in 1885, at the age of 35. Coolidge married again on September 9, 1891. to Caroline Athelia Brown (1857–1920). John Calvin Coolidge Sr. John Calvin Coolidge