On Freereg I have found these two baptisms can I ask what you think ,,going with Joseph as her brother as there was one who was witness at her wedding ;;

County Nottinghamshire
Place Nottingham
Church St Mary
RegisterNumber
DateOfBirth
BaptismDate 06 Apr 1783
Forename Mary
Sex F
FatherForename George
MotherForename Ann
FatherSurname WILDE
MotherSurname
Abode
FatherOccupation
Notes
FileNumber 13676

And

County Nottinghamshire
Place Nottingham
Church St Mary
RegisterNumber
DateOfBirth
BaptismDate 25 May 1787
Forename Joseph
Sex M
FatherForename George
MotherForename Ann
FatherSurname WYLDE
MotherSurname
Abode
FatherOccupation
Notes
FileNumber 13671