Cornwall OPC record 562619 in the Marriages database:
Day Month 02-Jan
Year 1845
Parish Or Reg District Just in Penwith, St.
Groom Fn James
Groom Sn EDDY
Groom Age 24
Groom Residence Church Town
Groom Condition bachelor
Groom Rank Profession miner
Groom Signed / Marked (S/M) S
Groom Father Name William
Groom Father Rank Profession miner
Bride Fn Mary Ann
Bride Sn WILLIAMS
Bride Age 24
Bride Residence Church Town
Bride Condition spinster
Bride Signed / Marked (S/M) M
Bride Father Name Thomas
Bride Father Rank Profession miner
Banns / Licence (B/L) banns
Witness Fn1 John
Witness Sn1 Boyns
Witness Fn2 John
Witness Sn2 Tregear
Transcriber Margaret Owens
However, Mary Ann's father may be incorrect as information on her death certificate suggests she was the daughter of James WILLIAMS and Sarah BAKER.
Also, it is interesting that James' residence is recorded as Church Town. His parents (I believe to be William EDDY and Elizabeth ROWE) were recorded as living at Truthwall in the 1841 census and 1851 census, i.e. either side of this marriage in 1845. I have checked for other marriages for a James EDDY, where he is recorded as of Truthwall, or Botallack, but can find none appropriate whose father is William. Therefore, I can only suggest that James had already moved out of the family home prior to marrying.