Hi blootoon17
Welcome to RootsChat

Take care when discussing names as I think some may be too recent. RC is not suitable for discussing living people (just a position that the site has always maintained to protect people's identity and privacy). Not sure if the children of George and Mary that you mention may still be alive...
The marriage of George and Mary looks to have taken place in 1953: 1st Qrt 1953 in Newark, Nottinghamshire, George Murray and Mary Sleight. Refs. Vol. 3c pg. 650.
If George and Mary are deceased, their death certs may give additional details. English marriage certs will only show fathers' names.
Monica