Gemini sailed 16 August for New York to load troops and sortied 24 October with convoy SC-107 bound for Ireland and United Kingdom ports.

After touching at San Pedro, California, for repairs, she reached Honolulu 11 December and commenced duty as an inter-island transport in Hawaiian waters.

In July 1944 Gemini shifted her operations to the Marshalls and Gilberts, carrying men and cargo to and from Kwajalein, Apamama, Tarawa, Makin, Majuro, Roi Namur, and Eniwetok.

She continued these essential transport duties in support of the allied advance until 1 June 1945 when she got underway for San Francisco, California, via Pearl Harbor.

Gemini sailed 28 August 1945 for the Pacific Ocean again, resuming her earlier transport runs in the Marshalls-Gilberts area and continuing the assignments until her return to San Francisco.