All the evidence suggests,but unable to confirm, George is not the son of Simeon Waines & Sarah Gage.
George's marriage certificate citing William Waines as father is part proof.
The 1841 census, is enlightening, in that George, Aaron(Adron) & Sarah are of ages years after Simeon's death, suggesting all three are grandchildren. Aaron's christening in 1840, the son of Elizabeth is proof of one.
Heading, the 1841 census is a William Waines, and by association and cicumstantial evidence, he & son George are living with Sarah, and Sarah raised George .
1851, George is a servant, but in 1861, now married, living again with Sarah. The down to this, George is described as son, but if she had raised him since very young, Sarah would see George more as a son than grandson.