Darrell, I am so glad to find someone else who is stumped with the Yeary's. I have been researching them for over 10 years, but will not give up. I have a feeling that Henry, Sr. is the father of Benedict and the grandfather of Henry, Jr. since the records of the slaves that came from Henry, Jr.'s father and Moses Balls FIL all appear to have come from Benedict.
I found Henry, Sr. in the Rev War Records in PA and have a copy of the record for a Henry Yerry which would coinside with the time spent in PA for Henry, Sr. and Benedict in the Conewago Community. Maybe soon I will have time to spend a weekend in Harrisburg, PA and go to the Archives and do some research there on the Yeary/Yerry/Jury surnames in the Conewago Community.
I am currently in Baltimore MD and may get kicked off line so I will catch you later. You can email me direct at: firstname.lastname@example.org Virginia