Harrison, Mary, 55, b TN - no land/personal $200 " Robert 19, b TN " Summerfield, 21, b TN
1860 census Giles Co, TN:
Harrison, Clementine, 43, b TN - Weaver - no land/pers $70 " Andrew J., 18, b MS " Virginia, 16, b MS " William T., 13, b MS " David S., 11, b MS " Robert C., 9, b MS
Ages for Robert and David S./ Summerfield match looks like same family, mother's name listed differently. Then I found someone who has his name as David Summerfield Harrison. Full date of birth, father's initials etc. Mother is Clementine.
This might not answer your question about the death of Summerfield and his wife, but check Rootsweb's WorldConnect site -- http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgihttp://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi -- That submitter has a little bit on the family. I would contact her and find out her sources etc. By comparing notes you both might benefit. Just type in Harrison, Summerfield.