Europa (AK-81)[Note 1] was never commissioned and thus never bore the USS designation.

[1] The ship was laid down 2 March 1942 as MV William Lester, a Maritime Commission type (N3-M-A1) hull, under Maritime Commission contract (MC hull 464),[2] at the Penn-Jersey Shipbuilding Company of Camden, New Jersey and launched 7 December 1942.

She was delivered to the Navy uncompleted 24 November 1943; transferred the next day, 25 November 1943, to the United States Army;[4] stricken from Navy lists 6 December 1943.

[Note 2] The ship did not complete conversion until 30 April 1944 and did not sail for Europe until late summer.

[6] Thomas F. Farrell Jr. was laid up in the reserve fleet at Suisun Bay on 12 June 1947 and sold to Zidell Explorations, Inc. by Maritime Administration sale 14 April 1965 for non-transportation use.