Gwen,
Not found much else. You probably have these:
1871 Census RG10-2924-64-16
George 58, b Cannock
Maria 53, b Cannock
Ann 16, b Cannock
Elizabeth 13, b Cannock
Alfred 7, b Cannock
1881 Census RG11-2783-10-11
Elizabeth 22
Alfred 16
Both boarding with Wright family
Not found son George, b 1844 but assuming he was eldest I looked for marriage of George to Maria in early 1840s. Didn't find Maria Brindley but did find:
George Green and Maria Moore, both m 1841 Q4 Cheadle, Staffs
George Green and Maria Hunt, both m 1841 Q4 Kings Norton, B'ham
Sherwood