They kept meticulous records. I read that during their months at Ft. Clatsop, they killed 128 elk. They were trying to dry the meat for the trip home but it was so wet that they couldn't do it. It all spoiled.
'Undaunted Courage' mentioned an event that I've never read anywhere else. On the return trip, a group was hunting elk in a quakie patch when one of the men mistook Lewis for an elk and shot him in the butt. It wasn't serious but Lewis spent a lot of time lying on his stomach in a canoe for a while.

“In a time of deceit telling the truth is a revolutionary act.”
― George Orwell

It's not over when you lose. It's over when you quit.