
It is my belief that Isaac and Esau were two separate brothers.
The will of father Henry Lamb indicates TWO separate brothers,
Isaac b.1728-d.1796 AND Esau b.1734-d. 1790.
It is my belief the following occured:
Esau Lamb married Elizabeth Newby 1757. (children followed).
Isaac married Elizabeth Nixon 2/18/1756.
I am not an Ancestry.com member, and so can only point indirectly towards a statement on FamilySearch records:
https://www.familysearch.org/en/tree/person/about/LX47-3DS
Eight Children Named in Henry's Will
Along with his wife, Elizabeth, these 8 children were specifically named in Henry Lamb's Will:
Isau/Isom (Esau), Jacob, Joseph, Elizabeth, Bethia, Thomas, Isaac, and Mary. Son William was deceased before the will was written. There is no mention of a son named Reuben Lamb in this will.
Here is the Ancestry.com link to the probate of the will:
https://search.ancestry.com/collections/9061/records/1080111
There were more merges to undo, but I think it’s sorted now. Added pictures & more biographical notes also.