| Tm | Name | W | L | Start | End | |
|---|---|---|---|---|---|---|
| BOS | Ed Barrow | 66 | 71 | Beg | End | |
| BOS | George Stallings | 57 | 82 | Beg | End | |
| CHA | Kid Gleason | 88 | 52 | Beg | End | |
| CHN | Fred Mitchell | 75 | 65 | Beg | End | |
| CIN | Pat Moran | 96 | 44 | Beg | End | |
| CLE | Lee Fohl | 44 | 34 | Beg | 19190718 | |
| CLE | Tris Speaker | 40 | 21 | 19190719 | End | |
| DET | Hughie Jennings | 80 | 60 | Beg | End | |
| LAN | Wilbert Robinson | 69 | 71 | Beg | End | |
| NYA | Miller Huggins | 80 | 59 | Beg | End | |
| OAK | Connie Mack | 36 | 104 | Beg | End | |
| PHI | Jack Coombs | 18 | 44 | Beg | 19190708 | |
| PHI | Gavvy Cravath | 29 | 46 | 19190709 | End | |
| PIT | Hugo Bezdek | 71 | 68 | Beg | End | |
| SFN | John McGraw | 87 | 53 | Beg | End | |
| SLN | Jimmy Burke | 67 | 72 | Beg | End | |
| SLN | Branch Rickey | 54 | 83 | Beg | End | |
| TEX | Clark Griffith | 56 | 84 | Beg | End |
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