| Jackson | Henry | 1st Lt | England | F | - | - | - |
| James | John | Pvt | Italy | E | 28 | - | - |
| James | William | Sgt | Wales | E | 27 | KIA | - |
| Jennys | Alonzo | Pvt | NY | K | 27 | - | - |
| Johnson | Benjamin | Pvt | Pennsylvania | G | 30 | - | - |
| Johnson | Samuel | Pvt | NY | A | 25 | - | - |
| Jones | Henry | Pvt | Pennsylvania | I | 32 | - | - |
| Jones | Julian | Pvt | Massachusetts | H | 27 | KIA | - |
| Jonson | Emil O | Pvt | Sweden | A | 23 | - | - |
| Jordan | John | Pvt | NY | C | 34 | - | - |
| Jungesbluth | Julius | Pvt | German | Band | 32 | - | - |
| Kavanagh | John | Pvt | Ireland | D | 25 | - | - |
| Kane | William | Pvt | Ireland | C | 42 | - | - |
| Kanipe | Daniel A | Sgt | North Carolina | C | 23 | - | - |
| Katzenmaier | Jacob | Pvt | Germany | G | 23 | - | - |
| Kavanagh | Thomas | Pvt | Ireland | L | 31 | KIA | - |
| Kavanaugh | Charles | Pvt | Pennsylvania | M | 35 | - | - |
| Keefe | John | Pvt | Ireland | B | - | - | - |
| Keegan | Michael | Pvt | Ireland | L | 44 | - | - |
| Keller | John | Pvt | Tennessee | D | 30 | - | - |
| Kelley | Patrick | Pvt | Ireland | I | 35 | KIA | - |
| Kelly | George | Pvt | NY | H | 28 | - | - |
| Kelly | James | Pvt | Massachusetts | H | 36 | - | - |
| Kelly | James | Trumpeter | Maine | B | 23 | - | - |
| Kelly | John P | Pvt | Pennsylvania | F | 27 | KIA | - |
| Kennedy | Francis J | Pvt | Missouri | I | 22 | - | - |
| Kenney | Michael | 1st Sgt | Ireland | F | 26 | KIA | - |
| Keogh | Myles | Captain | Ireland | I | 34 | KIA | - |
| Kerr | Dennis | Pvt | Ireland | A | 39 | - | - |
| Kilfoyle | Martin | Pvt | Ireland | A | 39 | - | - |
| Kimm | John G | Pvt | NY | E | 26 | - | - |
| King | George H | Cpl | Pennsylvania | A | 28 | WIA
later died |
- |
| King | John | Blacksmith | Switzerland | C | 27 | KIA | - |
| Kipp | Fremont | Pvt | Ohio | D | 25 | - | - |
| Klawitter | Ferdinand | Pvt | Germany | B | 40 | - | - |
| Klein | Gustav | Pvt | Germany | F | 28 | KIA | - |
| Klein | Nikolaus | Pvt | Germany | F | 26 | - | - |
| Klotzbucher | Henry | Pvt | Germany | M | 28 | KIA | - |
| Knauth | Herman | Pvt | Germany | F | 37 | KIA | - |
| Knecht | Andy | Pvt | Ohio | E | 24 | KIA | - |
| Kneubuhler | Joseph | Pvt | Switzerland | Band | 25 | - | - |
| Korn | Gustav | Pvt | Germany | I | 24 | - | - |
| Kramer | William | Trumpeter | Pennsylvania | C | 28 | KIA | - |
| Kretchmer | Joseph | Pvt | Germany | D | 38 | - | - |
| Kuehl | Jesse | Pvt | California | D | 22 | - | - |
| Laden | Joseph | Pvt | Ireland | G | 27 | - | - |
| Lainplough | John | Packer | - | Pack | - | - | - |
| Lalor | William | Cpl | NY | M | 31 | - | - |
| Lambertin | Frank | Pvt | Germany | H | 24 | - | - |
| Lange | Henry | Pvt | Germany | E | 25 | - | - |
| Larned | Charles W | 2nd Lt | NY | F | - | - | - |
| Lasley | William | Pvt | Missouri | K | 33 | - | - |
| Lattmann | John | Pvt | Switzerland | G | 28 | - | - |
| Lauper | Frank | Pvt | Ohio | G | 24 | - | - |
| Lawhorn | Thomas | Pvt | Kentucky | H | 25 | - | - |
| Lawler | James | Pvt | Ireland | G | 37 | - | - |
| Lawless | William | Packer | - | Packs | - | - | - |
| Lee | Mark E | Pvt | Maine | I | 27 | - | - |
| Lefler | Meig | Pvt | Germany | F | 29 | - | - |
| Lehman | Friederick | Pvt | Switzerland | I | 28 | KIA | - |
| Lehmann | Henry | Pvt | Germany | I | 37 | KIA | - |
| Lell | George | Cpl | Ohio | H | 29 | KIA | - |
| Lepper | Frederick | Pvt | Ohio | L | 27 | - | - |
| Lerock | William | Pvt | NY | F | 25 | KIA | - |
| Lewis | David | Pvt | Missouri | B | 22 | - | - |
| Lewis | John | Pvt | Pennsylvania | C | 30 | KIA | - |
| Lewis | Uriah | Pvt | Pennsylvania | D | 24 | - | - |
| Liddiard | Herod | Pvt | England | E | 25 | KIA | - |
| Liebermann | Andrew | Pvt | Germany | K | 29 | - | - |
| Liemann | Werner | Pvt | Germany | F | 33 | KIA | - |
| Littlefield | John | Pvt | Maine | B | 24 | - | - |
| Lloyd | Edward | Pvt | England | I | 24 | KIA | - |
| Lloyd | Frank | Sgt | England | G | 27 | - | - |
| Lobering | Louis | Pvt | Germany | L | 41 | KIA | - |
| Loeser | Chris | Packer | - | Packs | - | - | - |
| Logue | William | Pvt | NY | L | 30 | - | - |
| Lombard | Frank | Pvt | Italy | Band | 28 | - | - |
| Lord | George E | Asst Surgeon | Massachusetts | - | 30 | KIA | - |
| Lorentz | George | Pvt | Germany | M | 25 | KIA | - |
| Lossee | William | Pvt | NY | F | 27 | KIA | - |
| Lovett | Meredith | Pvt | Pennsylvania | C | 24 | - | - |
| Loyd | George | Cpl | Ireland | G | 33 | - | MOH* |
| Lynch | Dennis | Pvt | Maryland | F | 29 | - | - |
| Lynch | Patrick | Pvt | Ireland | I | 25 | - | - |
| Lyons | Bernard | Pvt | Ireland | F | 27 | - | - |
|
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