An old thread I know, but nothing ventured...
I too have an interest in the Weldon surname of Fintona, Tyrone. My own 5xGr Grandfather Francis Weldon is listed as living in Drafton townland in 1827. I don't yet know much about him other than he had at least two children (Francis and Elizabeth) who must've been born in the early 1800s. Elizabeth died (apparently unmarried) in Fintona in 1843. Francis married Charlotte Mussen in Lisburn in 1832 and (it seems) did not live in the Fintona area after that.
As always, any information, links or pointers would be VERY welcome!