- Leo T. Ariwite
- historical consultant: shoshoni liaison
- David Borlaug
- historical consultant: lewis and clark
- David Bouchard
- historical consultant
- Kelly Farrah
- historical consultant
- Stefan Feuerherdt
- legal team
- Delwin Fiddler Jr.
- historical consultant: indigenous
- Matthew R. Fitzpatrick
- historical researcher
- Susan Funk
- Native American Consultant: Flathead Nation
- Ralph Harris
- historical consultant
- Landon Jones
- historical consultant: lewis and clark
- Marcia K. Moore
- concept artist
- Jhane Myers
- native american consultant: indigenous liaison
- John Scott
- head animal wrangler
- Stephenie Ambrose Tubbs
- historical consultant: sacajawea
- Tanille Yow Ulm
- Native American Consultant
- Phyllis Yeager
- historical consultant: lewis and clark
