Using Heritage Quest, 1910 census Kings county, 17-WD Brooklyn, Series T624, Roll 966, page 85 I find a record of Allfred C. Hilton, 24, single, a lodger at 825 Manhatten Avenue, came from England 1909, employed at the YMCA, but I cannot make out his job title. He is in the home of what appears to be Gustaves Cressler, 50, born in New Jersey, his wife is Margaret 47, "Scot English". There are other boarders in the household, but none from England, and their names are difficult to read.
I don't have access to the 1930 census. I could not find marriage records for Allison and George. I see on the Social Security death index an Allison Hilton, died in NY, born about the right time. If this could be her, it would likely mean she never married.