REMOVE

1. Index Page
2. Washington
3. Oregon

WHAT

1. Exploration Book (2)
2. State Atlas (1)

WHERE

1. British Columbia (1)
2. California (1)
3. Canada (1)

WHO

1. Arthus Bertrand (1)
2. Cram, George Franklin (1)
3. Davis, Ellis Arthur (1)
4. Duflot de Mofras, Eugene (1)
5. E.A. Davis (1)

WHEN

1. 1844 (1)
2. 1845 (1)
3. 1909 (1)