What did pastors in the 1800s in the United States teach their congregations about interacting with Native Americans?

**Background** During the 1800s, Americans expanded farther west into the territory of Native Americans, which led to many interactions between settlers and Native Americans. From my limited but increasing knowledge of these interactions, they could be peaceful, but they could also be brutal and deadly. **Question** How did pastors teach their congregations to interact with Native Americans during the 1800s? For example, did pastors teach their congregations not to deplete the herds of buffalo that tribes relied on for food, and to respect the boundaries the tribes had? Or how did pastors tell their congregations to respond if a tribe kept on stealing their horses, or kidnapping their children? I would be helped if you could provide some examples and tell me how you found them. *Note*: I looked at various Stack Exchange sites, and the *Christianity* site seemed like the best place to raise this question. Thank you for your help!