Could I ask why have we moved away from the 1901 census where George T is shown to be a Drapers Assistant with a father Thomas who was a bootmaker and assumed the 1909 marriage which ties in with this is not correct? Just because Annie has the wrong surname?
George's address is given as Stratford (Essex) which would tie up with everything else we know.
There is a George Parker born Plaistow in Camberwell district in the 1911 census and a possible death of Annie M Parker in Lambeth district who could be the right age if the 1909 marriage is correct.
Isy, could I ask how you have a specific place of birth without a birth certificate?
How did you arrive at the suggestion his father was called Thomas?