| | Name | Rank | ASN | Unit | Campaign | | Ortiz, John | Pfc | | 730 Ord/Hq | |
| Ortiz, Oscar A. | | | 105 Med/C | |
| Ortiz, Ruben C. | | | 119/Unk Co | |
| Ortner, Rudolph A. | Cpl | | 118 FA/B | |
| Orvig, Mervin H. | | | 531 AAA/Unk Co | |
| Orville, Victor A. | Cpl | 35590722 | 105 Eng | |
| Osborn, Albert S. | Pfc | 33149537 | 120/Unk Co | |
| Osborn, Clifton C. | | | 120/Unk Co | |
| Osborn, Homer W. | Pvt | 35568430 | 119/I | |
| Osborn, Jack R. | SSgt | | 531 AAA/Btry C | |
| Osborn, John P. | Pfc | | 119/Unk Co | |
| Osborn, Lynn H. | TSgt | | 119/Unk Co | |
| Osborne, Carl L. | Pfc | | 117/D | N,NF,R,A,CE |
| Osborne, Charles E. | Pvt | | 531 AAA/Hq | |
| Osborne, Clifford F. | Pvt | | 743 Tank/Hq | |
| Osborne, Leslie W. | | | 30 MP Plat | |
| Osborne, Marvin S. | Pfc | 35447756 | 120/I | |
| Osborne, Ranal | | | 105 Med/C | |
| Osborne, Raymond E. | TSgt | | 117 | |
| Osborne, Richard D. | Pfc | | 117/C | R,CE |
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