I think there must have been at least two George FACERs.
I have been researching the PRIOR family and found that Mary married George at St. Neots, Hunts 1857. They then moved to America early 1860s.
I have done nothing with regards to the FACERS. Although I have just had a look and it would appear that Georges parents were Henry and Mary. I am unable to confirm this I am only going by public trees on Ancestry and IGI Family Search.
If I can be of any further help please let me know.