1. Lewis and Clark Medal: Clark, along with Meriwether Lewis, was awarded the Lewis and Clark Medal by the American Philosophical Society in 1809. This medal recognized their successful exploration of the Louisiana Territory.
2. Presidential Medal of Freedom: In 1904, President Theodore Roosevelt posthumously awarded William Clark the Presidential Medal of Freedom, which was established the previous year. This award recognized Clark's contributions to the exploration of the American West.
3. Lewis and Clark Expedition Commemorative Silver Dollar: In 1904, the United States Mint issued the Lewis and Clark Expedition Commemorative Silver Dollar. This coin featured profiles of Lewis and Clark on one side and an image of the keelboat used in their expedition on the other side.
4. Place Names and Monoliths: Several geographical landmarks and structures have been named in honor of William Clark. These include Clark County in various states, Clark Fork River in Montana, and monuments or monoliths commemorating his role in the Lewis and Clark Expedition.