| | Title | Date | Type |
|---|
| 401 |  | Park City Tram C.U. tray | 1975 | Image |
| 402 |  | Park City Union Pacific Depot interior, office | 1975 | Image |
| 403 |  | Park City Union Pacific Depot, exterior | 1975 | Image |
| 404 |  | Park City Union Pacific Railroad Depot (Park City, Utah) [b/w negatives] | 1945; 1946; 1947; 1948; 1949; 1950; 1951; 1952; 1953; 1954; 1955 | Image |
| 405 |  | Park City, City Hall | 1975 | Image |
| 406 |  | Park Record office door | 1975 | Image |
| 407 |  | Patrick Edward Connor | 1975 | Image |
| 408 |  | Patrick Edward Connor headstone | 1975 | Image |
| 409 |  | Photograph of Park City mining officials representing the Silver King, Ontario, Park City and Daly Mines. | | Image; Text |
| 410 |  | Pioneer Day Celebration ca 1908 | 1906; 1907; 1908; 1909; 1910; 1911; 1912; 1913; 1914; 1915; 1916 | Image |
| 411 |  | Pioneer Day Celebration ca 1910 | 1905; 1906; 1907; 1908; 1909; 1910; 1911; 1912; 1913; 1914; 1915 | Image |
| 412 |  | Pioneer Day Celebration with Elisabeth Brandt, oldest resident, 1923 | 1923 | Image |
| 413 |  | Pipe | | Image |
| 414 |  | Pipefitter for Midwest Pipe Co. at coke oven construction site | 1942; 1943 | Image |
| 415 |  | Pipefitters welding at construction site of coke ovens | 1942; 1943 | Image |
| 416 |  | Pipefitters working at construction site of coke ovens | 1942; 1943 | Image |
| 417 |  | Pit | 1975 | Image |
| 418 |  | Pleasant Valley at time of Gooseberry Dam breaking June 24, 1917 | 1917-06-24 | Image |
| 419 |  | Pool hall | 1975 | Image |
| 420 |  | Portal #2 Mine -- Castle Gate [left] and Employee bath house [right], n.d. | | Image |
| 421 |  | Portal (Gordon Creek Coal Mine, Utah), n.d. | | Image |
| 422 |  | Portal (Mutual Coal Mine, Utah), n.d. | | Image |
| 423 |  | Portal Mutual Coal Mine (Utah), n.d. | | Image |
| 424 |  | Prospector Square development sign | 1975 | Image |
| 425 |  | R. S. Sutton and Grand[daugher] | | Image |