Video footage of the wedding day is believed to have been taken around 50 years ago, and it is hoped it can be reunited with the pair in time for their golden wedding anniversary.
Jean Wootton, a friend of Margaret and Gary Cullum, from Wolverhampton, was told about the footage of 'Maggie and Gary' and thought it may be their wedding.
But when Mrs Cullum was given the footage she was disappointed to find out it was in fact a different Maggie and Gary.
WATCH the footage here:
Mrs Cullum now wants to reunite the footage with the real Maggie and Gary, who they believe may have wed between 1967 and 1971, at St Thomas's Church in Wednesfield.
The 71-year-old, who will be celebrating her own golden wedding anniversary on Valentine's Day 2021, said: "In about 1966, I met a girl called Jean Wootton and I'm still friends with her.
"She babysat for a couple called John and Betty Cox, who had two children and fostered many children.
"They're both deceased now but their son Alan Cox, who lives in Runcorn, was sorting out his cinefilm and found footage of Jean's wedding, which he gave to her along with footage of 'Maggie and Gary'.
"She let me know and we all got very excited waiting for it, but it was a different Maggie and Gary.
"The film says Maggie Hill but we don't know if it was maiden name Hill or if she became Hill.
"The dates we came up with are between 1967 and 1971, so they might have just celebrated their golden wedding anniversary or are about to.
"We don't know whether it might be one of their foster children's weddings, it would be nice to be able to reunite it with the owners and have a happy ending."
Anyone who may be able to reunite the footage with Maggie and Gary, or their family, is asked contact Mr and Mrs Cullum by emailing firstname.lastname@example.org