| 351 | Danny Murphy (Batting) | |
| 352 | Danny Murphy (Throwing) |  |
| 353 | Red Murray (Batting) |  |
| 354 | Red Murray (Portrait) |  |
| 355 | Red Murray (Portrait) (Murr’y) | |
| 356 | Chief Myers (Meyers) (Batting) |  |
| 357 | Chief Myers (Meyers) (Fielding) |
 |
| 358 | Billy Nattress |  |
| 359 | Tom Needham |  |
| 360 | Simon Nicholls (Hands On Knees) |  |
| 361 | Simon Nichols (Nicholls) (Batting) |  |
| 362 | Harry Niles |  |
| 363 | Rebel Oakes |  |
| 364 | Frank Oberlin |  |
| 365 | Peter O’Brien |  |
| 366 | Bill O’Hara (New York) |  |
| 367 | Bill O’Hara (St. Louis) | |
| 368 | Rube Oldring (Batting) |  |
| 369 | Rube Oldring (Fielding) |  |
| 370 | Charles O’Leary (Hands On Knees) |  |
| 371 | Charles O’Leary (Portrait) |  |
| 372 | William O’Neil |  |
| 373 | Al Orth |  |
| 374 | William Otey |  |
| 375 | Orval Overall (Hand Face Level) |  |
| 376 | Orval Overall (Hands At Waist Level) |  |
| 377 | Orval Overall (Portrait) |  |
| 378 | Frank Owen |  |
| 379 | George Paige |  |
| 380 | Fred Parent |  |
| 381 | Dode Paskert |  |
| 382 | Jim Pastorius |  |
| 383 | Harry Pattee |  |
| 384 | Billy Payne |  |
| 385 | Barney Pelty (Horizontal Photo) |
 |
| 386 | Barney Pelty |  |
| 387 | Hub Perdue |  |
| 388 | George Perring |  |
| 389 | Arch Persons |  |
| 390 | Francis Pfeffer |  |
| 391 | Jake Pfeister (Pfiester) (Seated) |
 |
| 392 | Jake Pfeister (Pfiester) (Throwing) |
 |
| 393 | Jimmy Phelan |  |
| 394 | Eddie Phelps |  |
| 395 | Deacon Phillippe |  |
| 396 | Ollie Pickering |  |
| 397 | Eddie Plank | |
| 398 | Phil Poland |  |
| 399 | Jack Powell |  |
| 400 | Mike Powers |  |