* Meriwether Lewis: Explorer, co-leader of the Lewis and Clark Expedition, and Governor of Upper Louisiana Territory, which included present-day Idaho.
* Sacagawea: A Shoshone woman who served as an interpreter and guide for the Lewis and Clark Expedition.
* Chief Joseph: A prominent leader of the Nez Perce people who led his tribe in a resistance against the United States government in the Nez Perce War.
* Wyatt Earp: A famous lawman and gambler who gained fame in the American West, including in the Idaho Territory.
* Ernest Hemingway: A renowned American writer known for works such as "The Old Man and the Sea" and "For Whom the Bell Tolls," who spent time in Idaho and loved its scenic beauty.
* J.R. Simplot: A prominent businessman and entrepreneur known as the "Potato King" for his extensive potato farming operations in Idaho and his contributions to the state's economy.