Thank you Jon
Of course, you are correct, Mary Jane and William were married in St Anna C of I Belfast. It’s been a long time since I did this research and I have forgotten more than a few details.
Mary Jane’s death certificate says she was 39, so born in 1865. Baptism may have been in other than C of I, I am at a loss to find it.
She is buried in the City Cemetery, with her aunt ( mother's sister) Susanna Hall nee McQuissick. William is buried in Milltown. They lived together till their death in 1904, having had nine children, the youngest being 2 years.