Joseph was born in 1808, and according to LDS, died in 1856. Agnes was born June 13, 1812. This family is on the 1850 census as:
Ross Co.,Oh.,Huntington Twp.,Ancestry.com page 18: Joseph Haynes,42,farmer,Ohio;Agnes,38,Ohio;Albert,15,Oh;Elizabeth,11,Oh.;Martha,3,Oh
Above Albert Haynes (born 22 Dec. 1835 in Ross Co., Ohio) married Julia A. Benson in 1857. Ihave been unable to find this family on any census. They had one child that I know of: Eva M. Haynes, born April 1878, died before May 26, 1947. Eva married (and later divorced) Jacob Albert Grace.