| Title | Date | Type | Setname | ||
|---|---|---|---|---|---|
| 251 |
 | Agents Office | 1893; 1894 | Text | dha_drgpl |
| 252 |
 | Air Compressor at University | 1909-09-29 | Image | dha_scp |
| 253 |
 | Airplane Playground in Murray Park 1990's | 1990; 1991; 1992; 1993; 1994; 1995; 1996; 1997; 1998; 1999; 2000 | Image | mc_mcm |
| 254 |
 | Airplane Super Service Station P.1 | 1930-01-10 | Image/StillImage | dha_cp |
| 255 |
 | Airplane Super Service Station P.2 | 1929-10-01 | Image/StillImage | dha_cp |
| 256 |
 | Airplane, San Salvis | 1912-02-10 | Image | dha_scp |
| 257 |
 | Airplanes P.20 | 1923-05 | Image | dha_cp |
| 258 |
 | Airplanes P.21 | 1923-05 | Image | dha_cp |
| 259 |
 | Airplanes P.22 | 1923-05 | Image | dha_cp |
| 260 |
 | Airplanes-Wright Brothers P.4 | 1911-04-07 | Image | dha_cp |
| 261 |
 | Airplanes-Wright Brothers P.5 | 1911-04-07 | Image | dha_cp |
| 262 |
 | Airport Fuel Pit | 1948-10-13 | Image | dha_scp |
| 263 |
 | Airport Fuel Pit | 1948-10-13 | Image | dha_scp |
| 264 |
 | Airport Fuel Pit | 1948-10-13 | Image | dha_scp |
| 265 |
 | Airport Fuel Pit | 1948-10-13 | Image | dha_scp |
| 266 |
 | Airport Fuel Pit | 1948-10-13 | Image | dha_scp |
| 267 |
 | Albertson's Parking Lot 1970's, 900 East and 5600 South | 1970; 1971; 1972; 1973; 1974; 1975; 1976; 1977; 1978; 1979; 1980 | Image | mc_mcm |
| 268 |
 | Albion Showing Old Workings | 1915-08-17 | Image | dha_scp |
| 269 |
 | Aldous, W. Frank | 1947 | Image/StillImage | dha_uslp |
| 270 |
 | Aldous, W. Frank | 1949 | Image/StillImage | dha_uslp |
| 271 |
 | Alex Pickering Front View of Team | 1910-10-08 | Image | dha_scp |
| 272 |
 | Alex Pickering Side View of Team | 1910-10-08 | Image | dha_scp |
| 273 |
 | Alex Pickering Team | 1913-12-30 | Image | dha_scp |
| 274 |
 | Alex Pickering Transfer Company | 1908-09-14 | Image | dha_scp |
| 275 |
 | Alex Pickering Transfer Company P.1 | 1910; 1911; 1912; 1913; 1914; 1915; 1916; 1917; 1918; 1919; 1920 | Image/StillImage | dha_cp |