| 1942: | John C. Cullen, Seaman 2/c discovered Nazi saboteurs landing on beach at Amagansett, Long Island. |
| 1942: | CGC Thetis sank German U-157 in Atlantic. |
| 1943: | CGC Escanaba lost off Ivigtut, Greenland, with only two survivors. The cause for the loss has never been confirmed. |