[John
[George
[York]
[Pierre
[Seaman]
[Field
[John
[John
Meriwether
Lewis, Captain

Assistant to Thomas Jefferson, avid student, expedition leader
William
Clark, Captain

Lewis’s former commanding officer, expedition coleader
John
Ordway, Sergeant

Journal writer (in case Lewis and Clark lose theirs’)
George
Drouillard

Interpreter, hunter, skilled woodsman
York
Slave and lifelong companion of Clark
Pierre
Cruzatte, Private

Riverman, expert fiddle-player
Seaman
Lewis’s pet, a 150-pound (68-kilogram) Newfoundland dog
Field brothers,
Privates
Joseph and Reubin, hard-working Kentucky men
John
Shields, Private

Oldest of the party at 35, a blacksmith and gunsmith
George
Shannon, Private

Youngest of the party, about 16