USS Admiral W. L. Capps (AP-121), an Admiral W. S. Benson-class transport, was the second ship of the United States Navy to be named for Rear Admiral Washington L. Capps (1864–1935). Unusually, the first — USS Capps (DD-550) — served concurrently with the Admiral W. L. Capps. Via a transfer to the United States Army and then back to the Navy, the ship was renamed USNS General Hugh J. Gaffey (T-AP-121), making her the only ship to be named for Hugh Joseph Gaffey.

The P2 transport was a United States Maritime Commission design for a passenger ship which could be readily converted into a troop transport. Three variants of the design were built, the P2-SE2-R1 (Admirals), P2-S2-R2 (Generals), and P2-SE2-R3 (Presidents).