Welcome to Rootschat Sarah.
I agree Marias maiden name was Bailey re Georges Birth Reg;
TOWNSEND, GEORGE, Mothers mn BAILEY***
GRO Reference: 1846 J Quarter in KENSINGTON, PADDINGTON AND FULHAM Volume 03 Page 325
Do you have Georges actual Birth Cert?
Maria may have been a Widow when she married Henry and her maiden name was Bailey.
Trish