Interesting indeed, I believe we are certainly related!Your uncle Obediah's father's name was John (1774-1853), I believe? His father before him was also MY ancestor, Obediah Jr (1743-1809), son of Obediah Sr. (1719-1805) Obediah Jr.'s sons, Isaac, Presley and John moved to near Stamping Ground, KY, where John's son,(your uncle)Obediah is buried, a picture of his headstone can be seen on Ancestry. com.My ancestor, Isaac (1783-1853), moved into Owen County north of Frankfort.
If you want to pass along the first/middle names of your grandfather Calvert, and also your great grandfather Calvert, I would be happy to search Ancestry.com and see what I can find as to how closely we may be related, and determine your line of descendency from Obediah Jr.Also, any birth/death info, burial location, etc., that you could provide would be useful. If you'd like me to contact you directly, please post your email address on here.