(SP-2873: dp. 8,890; l. 373'9"; b. 51'9"; dr. 24'6"; dph. 22'9"; s. 12.7 k.; cpl. 136; a. 2 6")
Santa Luisa (SP-2873), a single-screw, steel freighter originally named Santa Lucia, was launched on 23 March 1918 by William Cramp and Sons, Philadelphia, Pa.; delivered to the United States Shipping Board by W. R. Grace and Co. of New York on 10 August 1918 for service in World War I; and commissioned in the United States Navy on 12 August 1918 at New York, Lt. Comdr. Alvin W. Haynes, USNRF, in command.
Assigned to the Naval Overseas Transportation Service upon commissioning, Santa Luisa carried cargo bound for United States troops in Europe. She made two round-trip voyages from New York to La Pallice and Rochefort, France, between 25 August 1918 and 24 November 1918, carrying a total of 6,840 tons of cargo.
Santa Luisa was decommissioned on 9 December 1918 and returned to the Shipping Board for simultaneous return to her former owner. Her name was struck on 14 December 1918 from the Navy list. Remaining under United States registry under the subsequent names Santa Luisa, El Salvador, Santa Ana, and Mount McKinley, she foundered on 11 March 1942 off Unimak, Alaska.