Thanks for the info. I think I may have seen another reference somewhere with Alice going by her middle name, but on most documents I've seen Alice or Alice V. I did learn that she died in August 1871, but I still haven't found Nellie and William in 1880. However I did come across Andrew living with William in 1900.
Still having some difficulty with Andrew though. Their marriage record has his exact age and puts his birth date at 27 Nov 1830. There is an Andrew Jackson in the 1860 census in Albemarle 30 years of age living with (presumably his widowed mother) Nancy age 52. I have a record (I believe the same marriage record) showing his parents named John and Nancy, who I believe to be John Jackson and Nancy Toms (b. 1808).
However the other Andrew Jackson in Albemarle in 1860 is age 25 and a Carpenter, both of which are consistent with virtually every other record I've found for him.