The steamship Mobile was steel-hulled freighter built for the Atlantic Transport Line in 1891. She carried live cattle and frozen beef from the United States to England until the advent of the Spanish-American War. In 1898 she was purchased by the United States Army for use as an ocean-going troopship. During the Spanish-American War she carried troops and supplies between the U.S. mainland, Cuba, and Puerto Rico.
After the war, she was renamed USAT Sherman and was fitted for service in the Pacific, supporting U.S. bases in Hawaii, Guam, and the Philippines. In addition to her regular supply missions, she transported American troops to several conflicts in the Pacific, including the Philippine Insurrection, Boxer Rebellion, the 1911 Revolution in China, and the Siberian Intervention of World War I. Her last sailing in government service was in June 1922.
The ship was sold to the Los Angeles Steamship Company which renamed her Calawaii. She ran freight and passengers between Los Angeles and Hawaii from 1923 to 1932. The ship was scrapped in Japan in 1933.