1850 Bulloch Co, GA Federal Census:
27 81 83 Oliff Catherine 35 F Ga.
28 81 83 Lanier Sarah 11 F Ga. X
29 81 83 Lanier Allen 9 M Ga. X
30 81 83 Lanier Perry 6 M Ga. X
31 81 83 Oliff Landnell 1 M Ga.
It appears that Catherine's husband James has already died though they were married only a couple of years ago. Also, it is apparent that Catherine was previously married to a "Lanier" who apparently died before Oct. 1847.
1850 Bulloch Co, GA Federal Census:
27 81 83 Oliff Catherine 35 F Ga.
28 81 83 Lanier Sarah 11 F Ga. X
29 81 83 Lanier Allen 9 M Ga. X
30 81 83 Lanier Perry 6 M Ga. X
31 81 83 Oliff Landnell 1 M Ga.
This could well be Catherine Rigdon who married Frederick Lanier Feb 22, 1838. This fits in well with the two children named "Lanier" and with Wiley Rigdon who is living next door to her.
32 82 84 Rigdon Wiley 26 M Farmer 400 Ga. X
33 82 84 Rigdon Rebecca 22 F Ga.
34 82 84 Rigdon John 4 M Ga.
35 82 84 Rigdon Eliza 2 F Ga.
1820 Bryan Co, GA Federal Census:
1 White Male 10-15 (This son is too old to that of William & Elizabeth. He must be Elizabeth's step-son.)
1 White Male 45 or over (William)
1 White Female 25-44 (Elizabeth)