My great grandfather, William J. Fitzgerald, was born in Grayson County on Nov. 4, 1873. His parents were James (or John) and Mary Thornhill. Both parents were born in Ireland and deceased before William was 8yo. I believe that James and Mary were part of a group that immigrated from Ireland and came immediately to Grayson county. I believe that there are other Fitzgeralds in the area.
One family story is that they came to open a grocery store. They were Catholic and in the minority. The store burned down, and they moved. Possibly moving to Oklahoma.
I don't know of any other siblings, or family members related to this couple.
I really appreciate any help that anyone can provide. I seem to be at a dead end.