| NAME | COMPANY | RANK | |
| Lacock Albert | Company F | (not given) | |
| Lain Thomas D. | Company K | (not given) | |
| Lain William J. | Company K | (not given) | |
| Laing John | Company A | 5th Sergeant | |
| Lamb Jarvis E. | Company E | (not given) | |
| Lambert Israel | Company H | (not given) | |
| Lamm Axim J. | Company E | (not given) | |
| Landahl William | Company B | (not given) | |
| Lane Nelson M. | Company I | (not given) | |
| Lane William | Company I | 1st Lieutenant | |
| Lane William | Line Officers | Company I | |
| Langden Thomas E. | Company D | (not given) | |
| Lanning J. Meek | Field and Staff | Assistant Surgeon | |
| Larbie Isaiah | Company D | (not given) | |
| Larrisen Thomas J. | Company B | 5th Corporal | |
| Latta John W. | Company A | 6th Corporal | |
| Lauffer Peter | Company C | (not given) | |
| Laughlin David W. | Company E | (not given) | |
| Lawrance Chauncey | Company A | 1st Lieutenant | |
| Lawrance Chauncey | Line Officers | Company A | |
| Lawrance Horace | Company A | Drummer | |
| Layport Robinson | Company C | (not given) | |
| Leland Davis | Company I | (not given) | |
| Leonard Norman | Company A | (not given) | |
| Leslie James | Company C | (not given) | |
| Lewis James H. | Company E | 1st Sergeant | |
| Lewis Nathan J. | Company F | (not given) | |
| Lewis William C. | Company D | 2nd Corporal | |
| LichtebergerJosiah | Company G | (not given) | |
| Lichty Jacob P. | Company H | (not given) | |
| Lincoln Warren | Company E | (not given) | |
| Locke John | Company I | (not given) | |
| Logan Thomas | Company H | (not given) | |
| Long William | Company B | (not given) | |
| Longley Charles A. | Company C | Quartermaster Sergeant |
|
| Loomis Aaron M. | Company K | Captain | |
| Loomis Aaron M. Lin | Company K | 2nd Lieutenant | |
| Loomis Napoleon B. | Company E | (not given) | |
| Louthan George W. | Company E | (not given) | |
| Lucas Charles A. | Company D | Captain | |
| Lucas Henry J. | Company D | (not given) | |
| Lucus Dehart C. | Company G | (not given) | |
| Lucus Sanford | Company G | (not given) | |
| Lumbard Rufus | Company D | (not given) | |
| Lusk William S. | Company B | 1st Corporal | |
| Lynes John | Company G | 1st Sergeant | |
| Lyons Henry M. | Field and Staff | Surgeon |
