I could be wrong but it seems like some of the dates are off.
You have that Watachey's father was born only 15 years before the birth date I have for Watachey. I have that John Choate (Watachey) was born in 1820. You have that he was born in 1849 and married in 1865 but Tildy was born in 1845, 20 years before they were married.
Do you have documents for Champion and Ann Burke? Birth or death records? If so, I'd love to see them. Have you been able to get any deeper on Prudence Moytoy? Her father's name? Was her mother Indian?