| By the early 1900s, sheep were big business in Montana with 4.2 million of the woollies grazing the immense open ranges of the Big Sky Country. |
| Today's feral hog population is a hybrid of domestic pigs and Eurasian wild boars brought to North America in the early 1900s for food and sport. |
| Back in the 1900s, popular hunting and fishing mags profiled the elusive jackalope. |
| A collection of exercise books and school registers collected as far back as the early 1900s are also on display. |
| By the 1900s, it had become the litmus test of public health among the medical profession and the urban middle class. |
| As late as the early 1900s, older houses with gaslight were still being retrofitted for electricity. |
