Carole joined the Hollywood Victory Committee and worked tirelessly with the Red Cross, the Naval Aid Auxiliary, and Bundles for Blue Jackets. She also collected cigarettes for the soldiers, taught first aid, and donated blood as often as she was allowed. Carole NEVER turned down a request to help and visited more than two hundred military bases across the United States. When she went to Camp Bowie for a three day appearance in 1942 she danced with hundreds of soldiers, sang fifteen songs, and signed more than one thousand autographs.
Carole became an Air Raid Warden, a commander in the Aerial Nurses Corps, and an honorary Colonel in the American Legion. She auctioned off her favorite opal ring to raise money and she donated several movie projectors to bases overseas. Carole traveled more than one hundred thousand miles during the war. She performed for soldiers in Australia, Brazil, Algeria, Bermuda, Scotland, England, New Guinea, Ireland, Guam, and New Zealand. Carole said "Whatever we do for soldiers can't be enough in return for what they do for us. They are wonderful!"