1921 Sortable Roster
| Last Name | First Name | From City | From State | Position | 1917 | 1918 | 1919 | 1920 | 1921 | 1922 | 1923 |
| Sullivan | Stephen | Butte | Montana | Half | 1917 | | 1919 | 1920 | 1921 | | |
| Daylis | Fred | Worden | Montana | End | | | 1919 | 1920 | 1921 | | |
| Dorsey | James | Missoula | Montana | Offensive Line | | | 1919 | 1920 | 1921 | | |
| Keeley | Patrick | Deer Lodge | Montana | Quarterback | | | 1919 | | 1921 | | |
| Elliot | Harvey | Missoula | Montana | Offensive Line | | | | 1920 | 1921 | 1922 | |
| Madsen | Lloyd | Miles City | Montana | End | | | | 1920 | 1921 | 1922 | |
| MacGowan | Thomas | Lewistown | Montana | Offensive Line | | | | 1920 | 1921 | 1922 | |
| Ramsey | Theodore | Lewistown | Montana | Offensive Line | | | | 1920 | 1921 | 1922 | |
| Christie | Ralph | Spokane | Washington | Back | | | | | 1921 | | |
| Johnstone | William | New York | New York | Back | | | | | 1921 | | |
| Murphy | Ray | Anaconda | Montana | Offensive Line | | | | | 1921 | 1922 | |
| Plummer | Theodore | Stevensville | Montana | Back | | | | | 1921 | 1922 | 1923 |
| Poter | Gilbert | Stevensville | Montana | Back | | | | | 1921 | 1922 | |
| Rooney | Harry | Missoula | Montana | End | | | | | 1921 | | |
| Straw | Alvin | Forsyth | Montana | End | | | | | 1921 | | |
| Tanner | Gordon | Miles City | Montana | Back | | | | | 1921 | 1922 | 1923 |
| Dahlberg | George | Butte | Montana | Offensive Line | | | | | 1921 | 1922 | 1923 |
| Lambert | James | Great Falls | Montana | Back | | | | | 1921 | | |
