Not sure how my Cochran and Garst comes into the family your are looking for. I have Oliver and Eliz but not much more info than them. Wish I had more.
Interesting though, my Cochrans moved from PA to Warren Co, OH, then to Wabash Co, IN near the times the Rogers and Garsts moved there. They must have been close friends, so following them may lead to new info.
My Cochran was William and Jane Alcorn Cochran. If you see those names, you will begin seeing my family.
Wish you well.