I think we are related! Fanny Cook was married to Jacob Shanks, and their daughter Margaret married Benjamin Kantner (who is descended from the Jacob whom you mentioned). Benjamin and Margaret had 12 children, and I am descended from the youngest, Luther (he is my great grandfather). I am guessing that you are, too, since you are Luther III. Benjamin Bruce is my grandfather.
I have been researching for a few years now, email me and I'll let you know what else I have.