Would you say even the McElwee's from Mississippi that ended up in Texas have a link to one of these two groups you are talking about? My Grandfather (Henry Grady McElwee) was born in Amite, MS. He married Jessie Belle Lowe and died in Port Arthur, TX. I don't know any more than this. I would like to find out more. I know he had several brothers and they came to TX as well. I am interested in finding out as much as I can, as we don't know anything at all.