[3] West Mingo was launched on February 16, 1919 and delivered to the United States Shipping Board on November 30, 1919.

[11] During this time West Mingo was re-allocated to Pacific Mail Steamship Company who immediately put her on the round-the world voyage.

On February 24, 1921 West Mingo touched at Baltimore,[18] two days later in Norfolk[19] from where she proceeded to the Panama Canal[20] and onto San Francisco.

However, by early 1921 it became clear that with the tariffs imposed by the Shipping Board, it was impossible for American merchants to compete with the foreign companies.

[22] Since the ship was laid up for five years, it required significant repairs which were performed in January 1927 for approximately $70,000.00 at The Moore Dry Dock Company.

[25][26] In September 1929 it was announced that several ships belonging to the Quaker Line were renamed, and West Mingo became San Clemente.

On December 16, 1942 San Clemente was transferred under Lend Lease agreement to the USSR, and subsequently was renamed Tobol.