Hi Greg,
Here is a bit more census information:
(According to the 1900 census, they immigrated in 1850. I did not find them in the 1850 census, so must have been after the census was taken.)
Lois
1860 Cleveland Ward 6 # 262 (all born England–sic): Robt Christian 40 trader; Elizabeth 37; George 14; Elizabeth 12
1870 Cleveland Ward 6 # 176 (all born IOM): Robert Christian 51 clerk in custom house; Elizabeth 50; George 23 bookkeeper; Lizzie 22.
1900 Cleveland Distr 77 (Euclid Ave) # 1641
George B. Christian Oct 1841 50 M10 yrs; Eliza J. Mar 1850 50 M10 yrs 1ch-1lv; Bessie dau Jan 1892 8; Robert Father Jan 1819 81 wd immig1850 here 50 yrs Na. ??? Provision; Elizabeth sister Sept 1848 51 S; James R. Woodstock father-in-law