West Kasson was a steam cargo ship built in 1918–1919 by Long Beach Shipbuilding Company of Long Beach for the United States Shipping Board (USSB) as part of the wartime shipbuilding program of the Emergency Fleet Corporation (EFC) to restore the nation's Merchant Marine. The vessel initially operated on the round-the-world route from the West Coast of the United States via East Asia and Spain before being shifted to serve the Gulf to Europe and South America trade in 1922. In 1926 she was sold to the W. R. Grace and Company and renamed Cuzco. In her new role the ship operated chiefly between the ports of the Pacific Northwest and various Chilean and Peruvian ports. In 1940 the ship was again sold and transferred into Panamanian registry and renamed Carmona. The vessel continued sailing be