Hi ED,
I am one of ELISHA'S 5th generation grand children.
I think we have talked before.
My mother Mary Ellen Isaacks Her father John S. Isaacks (1875) his Father Andrew Jackson Isaacks his father Samuel Isaacks son of Elisha. The lines of your wife.
Elisha and Elijah were brothers My mother born 1n 1901. Knew Andrew. My grand father knew Andrew and Samuel. (These are Not the Andrew and Samuel from Ohio that were in TX.) Now the plot thickens! The Isaacs/Isaack/ Isac/Isaacks and on were so interest in naming their children for their ancestors there in is the trouble.
There were plenty of cousins with the same name. People pick a name and run with it.

We know Elisha was in and out of TX. from Land grants and court papers. We know he died at his Daughters home in TX.
We know our Samuel was here with his wife.
Elisha's birth date is listed as 3 yrs from Elijah. supposedly twins. Rumor or truth I don't know! I haven't seen proof!
I find no trouble with this as I have a Grand father on the other side with the birth on 1850 and 1860 showing at least 4 yrs difference in his on age sane person in Union County GA. (Alfred Nicholson) "No Isaack kin", just an example to fact that people did make mistakes. especially when a neighbor giving info for them. This line is long lived for the most part. and My grand father was sharp minded. as most were.
I hope you are both well!