To lookup a marriage that "recent" you have to know which church they married in. If it was a civil marriage it can't be looked up
www.lancashirebmd.org.uk shows it was at Holy Law Congregation Bury Old Rd Prestwich
You need to contact the records office to check if the church has lodged it's records for that period with them
I note that the bride was born 1943 - is she still living? If yes - or if you don't know - the names of possible living persons is not allowed to protect their privacy & you need to remove her name from your post
You will probably need to buy a copy of the cert
