It wasn't outlawed until 1691, they were together and had 3 children before 1689 while living on pamunkey land the whole time. You have really set your mind to this. Going against the author and tribal historian. If Sussanah wasn't Pamunkey, but was a gift from Cockacoeske to Cornelius at the passing of his first wife, had 3 kids before 1689... you have no other reason to believe that she was anyone else. Who would be allowed to live there while popping out children 1684, 1685, 1688.
Remember it wasn't outlawed until 1691. Soooo... I think you are taking a lot of liberty here. 3 kids being raised on the reservation of the middle plantain treaty.
What proof do you have that she wasn't native. She came from out of no where, supposedly given by Cockacoeske to her interpreter who lived with the pamunkey. I'd love to hear the evidence. She named her children Dorothy, Cornelius, and Mary. All while living on the reservation around 1680 and before 1691. She married David Anderson around 1695. P.s. a Pettus signed was one of the signers of the orphan bond when Sussanah's youngest son Robert Anderson passed away. That youngest son, was married to another no named person.
Sussanah's second known husband had been married before while living on pamunkey land (to another unknown female), he was also born on pamunkey land, and his father was also born in New Kent 1641. So the andersons had children born there from 1641-1695 (54 years straight) all of whom married unknown females. Who according to your theory were not natives although living on native lands.