Yeah, I found that out! He is so much easier because of that weird name (mother's surname) so that's quite a handy tool for research. Still no definite link to Ebenezer, but I am thinking that they were brothers or that their fathers were.
Not sure whether Ebenezer's father was William, he only seems to have one son and that is James. So perhaps the cousin option fits better: if Ebenezer had a father called James, while Cornwell had a father called William, and James and William were brothers?
