Hi Glenn, Have you ever found a connection of Thomas Malloy to the Mullen family yet?
My husbands great grandfather was William Peterson Mullen...son of Samuel Becton Mullen, Sr.....son of William Peterson Mullen.......son of William Scott Mullen.
It would appear that he didn't marry one of William Scott Mullen's daughters.......unless they had remarried. And it would appear that he isn't a father-in-law if his wife's name was Britt/Brett.........but he could have been a grandfather, or uncle on her mother's side. Have you got a birthdate for this Thomas Mallory?