Would love to help you any way I can. I'm not actively working on my tree right now...I'm just so busy otherwise. However, My Ancestry account notifies my email when I get a message. Cornelius was my g.g.grandfather. Many people on this board and others I have found are lacking Cornelius' daughter, Thetis, (my g.grandmother)and her descending family.
I don't have an overwhelming amount of information, but would love to help you with what I know. Contact me anytime and I will respond as soon as possible. I suppose we are distant relatives!