The “ground echelon” of the 494th Bombardment Group left Angaur Island in the Palau Group of the Caroline Islands on 21 June, 1945, and was transported to Okinawa via a staging stop on Ulithi Island, arriving at Okinawa on 11 July, 1945.
U.S.S. Alkaid (AK-114) itinerary from http://www.navsource.org/archives/09/13/0913011403.jpg