Bradford describes the natives as barbarians and savages in his description of them in his work Of Plymouth Plantation. Since I don't have the passage you need, I'm assuming that Squanto and Massasoit are different.
D. The conversation you write must sound natural for the characters.
More natural conversations between characters make your writing more fun to read. Reading a dialogue that sounds like it could actually happen engages the reader, and creates an investment in the characters themselves. Think of it this way, would you rather watch a movie with good acting or bad acting?
I think that you would have to add commas in each of the sentences, is they how they are written? Did you take the punctuation out?