I'll start with my grandparents:
Jabez Beaumont Miller - Cora Ann Murray
+George Washington Miller - Julia Ann Francess Harness
++Abraham Harness - Sarah E. Snead
+++Oglesby B. Snead - Caroline Gann
++++Isaac Reuben Gann - Elizabeth Anna Clark
+++++Ignatious Nathan Gann - ???
++++++Adam Carter Gann - Jane ?
+++++++Samuel Gann - Elizabeth Carter
Some of the above is educated speculation. Does anyone else share this line?