Based at Guadalcanal "DuPage" served in the redeployment of troops in the Solomons and carried troops for the assault landings on Emirau Island on 11 April 1944 and the support landings at Cape Gloucester, New Britain, from 28 April to 1 May. On 3 June she got underway for the invasion of Guam, landing her troops from 21 to 26 July. After evacuating casualties to Eniwetok, and exercising off Espiritu Santo, "DuPage" returned to Guadalcanal on 27 August to replenish, overhaul her landing craft, and train for the invasion of the Palau Islands.