USCGC Tampa was an Ungala-class cutter that served in the US Revenue Cutter Service, the US Coast Guard, and the US Navy.
On 6 April 1917, when the United States entered World War I, Tampa was transferred to Navy jurisdiction for the duration of hostilities. During that time, she was assigned ocean escort duty protecting convoys from German submarines on the route between Gibraltar and the southern coast of England. On the afternoon of September 26, 1918, Tampa parted company with convoy HG-107, which she had just escorted into the Irish Sea from Gibraltar. Ordered to put into Milford Haven, Wales, she proceeded independently toward her destination. At 7:30 that evening, as she transited the Bristol Channel, the warship was spotted by UB-91. According to the submarine war diary entry, the U-boat dived and maneuvered into an attack position, firing one torpedo out of the stern tube at 8:15 from a range of about 550 meters. Minutes later, the torpedo hit Tampa and exploded portside amidships, throwing up a huge, luminous column of water. The water was shocked by a second detonation two minutes later, most likely caused by Tampa’s depth charges reaching pressure fuse depth, as the cutter sank with all hands, 115 officers and men as well as 16 passengers at roughly 50° 40′ N and 6° 19′ W. Alerted by the convoy flagship, whose radio operator reported having felt the shock of an underwater explosion at about 2045, search and rescue efforts over the succeeding three days turned up only some wreckage, clearly identified as coming from Tampa, and a single unidentified body. Three bodies were later recovered, two from a beach near Lamphey, Wales, and the other at sea by a British patrol boat.
| Name | Rating | Duty Station | Date |
| Weech, W. | Steward | USCGC Tampa | 9/26/1918 |
| Emerson, A. C. | Boy 1st Class | USCGC Tampa | 9/26/1918 |
| Saldarini, A. L. | QM | USCGC Tampa | 9/26/1918 |
| Busho, A. J. | S1 | USCGC Tampa | 9/26/1918 |
| Bevins, A. K. | WT | USCGC Tampa | 9/26/1918 |
| Poulsen, A. | AMAA | USCGC Tampa | 9/26/1918 |
| Maclean, A. N. | F1 | USCGC Tampa | 9/26/1918 |
| Deasy, A. J. | QM | USCGC Tampa | 9/26/1918 |
| Bevins, A. L. | F1 | USCGC Tampa | 9/26/1918 |
| Campell, A. R. | S1 | USCGC Tampa | 9/26/1918 |
| Harris, A. R. | Cox | USCGC Tampa | 9/26/1918 |
| Nelson, B. | WT | USCGC Tampa | 9/26/1918 |
| Daniels, B. N. | MM1 | USCGC Tampa | 9/26/1918 |
| Lane, B. H. | Boy 1st Class | USCGC Tampa | 9/26/1918 |
| Johnson, C. I. | OS | USCGC Tampa | 9/26/1918 |
| Dechrit, C. | S1 | USCGC Tampa | 9/26/1918 |
| Galvin, C. E. | AMAA | USCGC Tampa | 9/26/1918 |
| Greenwald, C. E. | Cook | USCGC Tampa | 9/26/1918 |
| Klingelhoefer, C. H. | Carpenter | USCGC Tampa | 9/26/1918 |
| Thompson, C. H. | Boy 1st Class | USCGC Tampa | 9/26/1918 |
| Parkin, C. W. | Boy 1st Class | USCGC Tampa | 9/26/1918 |
| Faust, C. M. | OS | USCGC Tampa | 9/26/1918 |
| Lawerence, C. M. | QM | USCGC Tampa | 9/26/1918 |
| Bell, E. C. | AMAA | USCGC Tampa | 9/26/1918 |
| Dorgan, E. F. | S1 | USCGC Tampa | 9/26/1918 |
| Shanahan, E. F. | Bayman | USCGC Tampa | 9/26/1918 |
| Kelly, E. | Oiler | USCGC Tampa | 9/26/1918 |
| Legree, E. D. | Boy 1st Class | USCGC Tampa | 9/26/1918 |
| Poppell, F. G. | S1 | USCGC Tampa | 9/26/1918 |
| Wilkes, F. L. | S1 | USCGC Tampa | 9/26/1918 |
| Scott, F. R. | F1 | USCGC Tampa | 9/26/1918 |
| Garrett, F. C. | WT | USCGC Tampa | 9/26/1918 |
| Quigley, F. H. | Carpenter 2nd | USCGC Tampa | 9/26/1918 |
| Taylor, F. J. | EM1 | USCGC Tampa | 9/26/1918 |
| Creamer, F. W. | S1 | USCGC Tampa | 9/26/1918 |
| Wyman, F. W. | WT | USCGC Tampa | 9/26/1918 |
| Manfield, F. | F1 | USCGC Tampa | 9/26/1918 |
| Griffiths, G. H. | AE2 | USCGC Tampa | 9/26/1918 |
| Mehalatos, G. | Oiler 1st Class | USCGC Tampa | 9/26/1918 |
| Doyle, G. J. | S1 | USCGC Tampa | 9/26/1918 |
| Hansen, H. | QM | USCGC Tampa | 9/26/1918 |
| Johanson, H. I. | MM1 | USCGC Tampa | 9/26/1918 |
| Irsh, H. B. | Coal Heaver | USCGC Tampa | 9/26/1918 |
| Haughland, H. | S1 | USCGC Tampa | 9/26/1918 |
| Myers, H. | Boy 1st Class | USCGC Tampa | 9/26/1918 |
| Tonneson, H. | Cox | USCGC Tampa | 9/26/1918 |
| Carmichael, H. | Boy 1st Class | USCGC Tampa | 9/26/1918 |
| Evans, H. L. | Boy 1st Class | USCGC Tampa | 9/26/1918 |
| Sumner, H. B. | S1 | USCGC Tampa | 9/26/1918 |
| Holstein, H. | EM3 | USCGC Tampa | 9/26/1918 |
| Slicklen, I. A. | Boy 1st Class | USCGC Tampa | 9/26/1918 |
| Nix, J. D. | Writer | USCGC Tampa | 9/26/1918 |
| Wilkie, J. C. | Cook | USCGC Tampa | 9/26/1918 |
| Adams, J. J. | OS | USCGC Tampa | 9/26/1918 |
| Fleury, J. M. | SN | USCGC Tampa | 9/26/1918 |
| Ross, J. | Boy 1st Class | USCGC Tampa | 9/26/1918 |
| Bouzekis, J. | S1 | USCGC Tampa | 9/26/1918 |
| Kosinski, J. C. | Cox | USCGC Tampa | 9/26/1918 |
| Talley, J. E. | F1 | USCGC Tampa | 9/26/1918 |
| Healy, J. F. | S1 | USCGC Tampa | 9/26/1918 |
| Miller, J. F. | Cox | USCGC Tampa | 9/26/1918 |
| Richards, J. R. | S1 | USCGC Tampa | 9/26/1918 |
| Smith, J. | Cox | USCGC Tampa | 9/26/1918 |
| Britton, J. | OS | USCGC Tampa | 9/26/1918 |
| Cygan, J. | MAA | USCGC Tampa | 9/26/1918 |
| Lieb, J. | S1 | USCGC Tampa | 9/26/1918 |
| Darnou, J. G. | GM | USCGC Tampa | 9/26/1918 |
| Vallon, J. M . | F1 | USCGC Tampa | 9/26/1918 |
| Wiley, J. P. | Wheelman | USCGC Tampa | 9/26/1918 |
| Bozeman, L. R. | S1 | USCGC Tampa | 9/26/1918 |
| Thomas, L. A. | S1 | USCGC Tampa | 9/26/1918 |
| Vaughan, L. F. | YN | USCGC Tampa | 9/26/1918 |
| Larsen, L. A. | MAA | USCGC Tampa | 9/26/1918 |
| Hutton, M. J. | Cook | USCGC Tampa | 9/26/1918 |
| Sarkin, M. | S1 | USCGC Tampa | 9/26/1918 |
| Finch, N. W. | SN | USCGC Tampa | 9/26/1918 |
| Walpole, N. | QM | USCGC Tampa | 9/26/1918 |
| Harrison, O. G. | F1 | USCGC Tampa | 9/26/1918 |
| Schwegler, P. B. | S1 | USCGC Tampa | 9/26/1918 |
| Webb, P. O. | Boy 1st Class | USCGC Tampa | 9/26/1918 |
| Mansfield, P. | Boy 1st Class | USCGC Tampa | 9/26/1918 |
| Roberts, P. | Cook | USCGC Tampa | 9/26/1918 |
| Fonceca, P. | Boy 1st Class | USCGC Tampa | 9/26/1918 |
| Cordova, R. E. | S1 | USCGC Tampa | 9/26/1918 |
| Agee, R. L. | FN | USCGC Tampa | 9/26/1918 |
| Norwood, R. | Boy 1st Class | USCGC Tampa | 9/26/1918 |
| Robertson, R. G. | Boy 1st Class | USCGC Tampa | 9/26/1918 |
| Burns, R. W. | F1 | USCGC Tampa | 9/26/1918 |
| Layman, S. | S1 | USCGC Tampa | 9/26/1918 |
| Cooke, S. S. | Cox | USCGC Tampa | 9/26/1918 |
| Connell, W. R. | Boy 1st Class | USCGC Tampa | 9/26/1918 |
| Sumner, W. | Writer | USCGC Tampa | 9/26/1918 |
| Nobles, W. J. | Boy 1st Class | USCGC Tampa | 9/26/1918 |
| Knudsen, W. | AM | USCGC Tampa | 9/26/1918 |
| Clements, W. B. | AE1 | USCGC Tampa | 9/26/1918 |
| Deering, W. F. | F1 | USCGC Tampa | 9/26/1918 |
| Newell, W. F. | EM3 | USCGC Tampa | 9/26/1918 |
| Reynolds, W. H. | S1 | USCGC Tampa | 9/26/1918 |
| Hickey, W. | BM | USCGC Tampa | 9/26/1918 |
| Holland, W. | Boy 1st Class | USCGC Tampa | 9/26/1918 |
| Williams, W. J. | F1 | USCGC Tampa | 9/26/1918 |
| Felton, W. L. | OS | USCGC Tampa | 9/26/1918 |
| Hastings, W. P. | F1 | USCGC Tampa | 9/26/1918 |
| Bozeman, W. R. | AM1 | USCGC Tampa | 9/26/1918 |