She was operated by the Naval Overseas Transportation Service.

Absaroka was assigned to the Naval Overseas Transportation Service following her commissioning.

At New York she discharged her cargo, primarily pineapple, and was attached to the Naval Overseas Transportation Service.

She then reported to the Naval Overseas Transportation Service.

Operated by the Naval Overseas Transportation Service, she sailed from Seattle on 23 May with a cargo of flour.

Late in the conflict, he became assistant director of the Naval Overseas Transportation Service.

Soon after commissioning, Alameda was assigned to the Naval Overseas Transportation Service.

Alameda continued to serve with the Naval Overseas Transportation Service for the remainder of her naval career.

Casco was assigned to the Naval Overseas Transportation Service.

During 1917-18 she made four round trips across the Atlantic as a unit of the Naval Overseas Transportation Service.