After a little while Lewis and Clark viewed them as slightly helpful with the more time they spent around/with them, because they introduced new methods with medicine, weapons, food, etc.
I’m pretty sure the answer would be the Paleo-Indians. Not to sure though.
No, that is the exact opposite of the progressive era and it’s goals. The main objectives of the Progressive movement were addressing problems caused by industrialization, urbanization, immigration, and political corruption. The movement primarily targeted political machines and their bosses. It focused on the lower class to ensure equality for them. It was meant to defuse exploiting the lower class.