Hi Heywood,
Bridget's maiden name was Melvin. In 1871 they were living in York, Civil District, St Mary's Castlegate. They were with their 3 children, James, John and Thomas, together with 3 other adults.
I've added a screen shot with the reference at the side. I hope this helps to give you a lead. I would love to find their marriage date a buy a copy of it. I have Bridget's death certificate.
Thanks for your help,
Liz