With the outbreak of World War II, the island was taken over by the U.S. military, as well as all of the ships of the Wilmington Transportation Company.
The SS Avalon was left behind for limited transportation to and from the mainland, while the SS Catalina and SS Cabrillo were taken to San Francisco Bay to serve as troop transports in the bay and surrounding areas.

After the war had ended, the SS Catalina was taken back to be used for ferry services to and from the island, while the Cabrillo was purchased by the U.S. Army who operated her until 1947 where she was brought to the Cuttings Wharf in Napa, California.
With the outbreak of World War II, the island was taken over by the U.S. military, as well as all of the ships of the Wilmington Transportation Company. The SS Avalon was left behind for limited transportation to and from the mainland, while the SS Catalina and SS Cabrillo were taken to San Francisco Bay to serve as troop transports in the bay and surrounding areas.
After the war had ended, the SS Catalina was taken back to be used for ferry services to and from the island, while the Cabrillo was purchased by the U.S. Army who operated her until 1947 where she was brought to the Cuttings Wharf in Napa, California.
SS Cabrillo