My 3x great grandfather, Hugh Lafayette, father of Elias Lafayette, was possibly from Londonderry. That's what the Mexican War enlistment record indicates. I am hitting brick wall as to when he immigrated to America. The surname spellings are all over the wall with Lafayette. Every time I try to look up the name, I get everything in Lafayette, Louisiana. Any help would be greatly appreciate. My DNA came back and I'm definitely of irish decent -- not french. :-)