| Title | Date | Type | Setname | ||
|---|---|---|---|---|---|
| 476 | Office Interior | 1951-10-27 | Image | dha_scp | |
| 477 | Office Interior | 1951-10-27 | Image | dha_scp | |
| 478 | Old Folks Day, Lagoon | 1909; 1905; 1906; 1907; 1908; 1910; 1911; 1912; 1913 | Image | dha_scp | |
| 479 | Onions P.2 | Image | dha_cp | ||
| 480 | Oregon Short Line Railroad P.14 | 1914 | Image | dha_cp | |
| 481 | Oregon Short Line, Clearfield | 1921-05-10 | Image | dha_scp | |
| 482 | Oregon Short Line, Clearfield | 1921-05-10 | Image | dha_scp | |
| 483 | Oregon Short Line, Clearfield | 1921-05-10 | Image | dha_scp | |
| 484 | Oregon Short Line, Clearfield | 1912-07-25 | Image | dha_scp | |
| 485 | Palmer, George W.-Residence P.1 | 1912 | Image | dha_cp | |
| 486 | Peter Skene Ogden | Image | dha_cp | ||
| 487 | Peter Skene Ogden | Image | dha_cp | ||
| 488 | Peter Skene Ogden | Image | dha_cp | ||
| 489 | Peter Skene Ogden | Image | dha_cp | ||
| 490 | Phillips, Edward-Residence P.1 | Image | dha_cp | ||
| 491 | Plant Exterior | 1951-10-27 | Image | dha_scp | |
| 492 | Plant Exterior | 1951-10-27 | Image | dha_scp | |
| 493 | Portrait of David Day | 1915; 1916; 1917; 1918 | Image/StillImage | dha_kdfc | |
| 494 | Postcards and Telegrams | 1918 | Text | dha_kdfc | |
| 495 | Postcards to Day Family Members | 1918-09-09; 1917-09-24 | Text | dha_kdfc | |
| 496 | Prevention pays off: on the trail of disaster | 1946; 1947; 1948; 1949; 1950; 1951; 1952; 1953; 1954; 1955 | Image/MovingImage | dha_alwmc | |
| 497 | Proudfit, James-Residence P.1 | Image | dha_cp | ||
| 498 | Pumpkins P.1 | Image | dha_cp | ||
| 499 | Rampton Drug Store | 1912 | Image | dha_cp | |
| 500 | Rich-Woolley-Residence P.1 | Image | dha_cp |