| A | B |
| Oregon Country | Huge northwest area beyond the Rockies |
| U.S., Great Britain, Spain, Russia | Countries in the early 1800's that claimed Oregon |
| Robert Gray | Sea captain from Boston who named the Columbia River in1792 |
| John Jacob Astor | fur trader who built the town of Astoria at the mouth of the Columbia River |
| Sir Francis Drake | Britain claimed Oregon because of his visit in 1579 |
| Mountain Men | adventurous men who trapped animals and lived off the land in Oregon |
| rendezvous | French word for "get-together" |
| Jedediah Smith | Led settlers across the Rockies through South Pass, in Wyoming |
| Manuel Lisa | Spanish American trapper |
| Marie Dorian | Mountain woman, Iowa Indian |
| missionaries | first white Americans to build permanent settlements in Oregon |
| Whitman's | Missionary couple |
| Oregon Trail | 2000 mile journey from Independence, MO to Oregon Country |
| "plains library" | Books cast aside on the Oregon Trail |
| Cholera | One of the biggest threats to people on the wagon trains |
| 50,000 | number of people that reached Oregon between the years 1840 and 1860 |