Image of the marriage is on FamilySearch
https://www.familysearch.org/ark:/61903/3:1:939N-QW98-NHYou can whizz through and see if any fathers are given as deceased (a good few must have been). I didn't see any.
Better by far though than just seeing the word "Deceased" in the father's occupation column!
Residence for Mary, 2 Catherine Street
In 1841, Catherine Street, St Andrew, begins with John Hoar, 30, Publican, piece 270 book 5 folio 24 page 43
On page 45, Susanna Bartlett, a nurse at some kind of alms house? With a 10 year old of the same name, and a Mary Bartlett, 74, on the next page, one of the residents?
https://www.familysearch.org/ark:/61903/1:1:MQTL-Z3XPossibly of of no relevance. There was another Catherine Street in Stoke Damerel, but presumably it's this one Mary meant?