Hi Darren
I have a few possible Mary RULEs in my tree. Do you know the names of the parents of your Mary? When was she born?
I found the following on 1841 census:
1841 Jun 7: ENG CON Redruth Trenerry's Court:
DAWE, Joseph, 30, copper miner
DAWE, Mary, 25
DAWE, Henry, 15, mine lab
DAWE, Joseph, 5
DAWE, Mary, 2
all born in county
[HO 107 Piece 143 Book 15 Folio 18 Page 29 CP Redruth Hundred Penwith RD Redruth SD Redruth ED 4 Line 21].
Neighbours were Stephens and Thomas families.
If this is your Mary, her birth would have been around 1810 to 1815 or so, I guess.
Her father's name would be on the marriage certificate.
Cheers
Peter