Hello
I looked for Moses brother William who on the 1871 c his wife was Charlotte ? age 33, William age 36he was a laborer Living at 3 Malthill Egham Windsor, he had 3 children George 14, Walter 9 and Charlotte age 7.
On the 1881 census he lived at 97, The Brickfields, Egham, Windsor. he was a Brick Burner. I don't know if this is the William as you say he emmigrated to N.Y. in 1870.
Bye Brenda