| Title | Date | Type | Setname | ||
|---|---|---|---|---|---|
| 1 |
 |
"How the Horse Helped Build America." Chapter 15, No.1. Railroad construction workers | 1880; 1881; 1882; 1883; 1884; 1885; 1886; 1887; 1888; 1889 | Image | uum_map |
| 2 |
 |
Central Pacific RR - Locomotives P.16 | 1868; 1869; 1870; 1871; 1872; 1873; 1874; 1875; 1876; 1877; 1878; 1879; 1880; 1881; 1882; 1883; 1884; 1885 | Image/StillImage | dha_cp |