| | Name | Rank | ASN | Unit | Campaign | | O'Connell, John N. | Pfc | 32466363 | 119/E | |
| O'Connell, Thomas P. | | | 119/G | |
| O'Connell, William J. | | | 823 TD/Recon | |
| O'Conner, Francis R. | | | 113 FA/Unk Co | |
| O'Conner, John | | | 105 Eng | |
| O'Conner, John F. | Pfc | 36219835 | 119/E | |
| O'Connor, Francis W. | 2nd Lt. | O-1177118 | 230/Unk Co | |
| O'Connor, John M. | Sgt | ??705075 | 105 Eng | |
| O'Connor, Michael J. Jr. | Pvt | 12227994 | 119/I | |
| O'Connor, Michael P. | | | 120/Unk Co | |
| O'Connor, Raymond R. | TSgt | | 120/A | |
| O'Connor, Thomas F. | Cpl | | 117/1st | |
| O'Dea, Velvie R. | | | 531 AAA/Btry B | |
| O'Dell, Kenneth M. | SSgt | 6862812 | 119/Unk Co | |
| O'Donnell, Edward T. | 1st Lt | O | 105 Eng/A | |
| O'Donnell, William J. | Cpl | 33477002 | 117/3rd/AT Plt | |
| O'Flanagan, Clarence D. | | | 531 AAA/Btry A | |
| O'Grady, John J. | Pvt | | 113 FA/Unk Co | |
| O'Grady, Matthew J. | | | 531 AAA/Btry D | |
| O'Hara, Daniel F. | T/5 | | 118 FA/A | |
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