The John H Fortune married to Sarah had the following children: James L, c 1859 married to Virginia Brookins, Maria L, c 1863, Charles T c 1865, Mary E, c1865 married Roy Hillery, John H c 1867 married Mary Butler, Fannie c 1869, Isaiah c 1871, Nancy c 1875 and George c 1878...as far as I know John and Sarah stayed in Caroline County.
There was a Lucy Ellen Saunders b 1836 Essex Co, who married a John Fortune b 1836 Essex Co, on 14 May 1857...her father was listed as William Saunders and her mother was Susan.....John's father was listed as Ang Fortune
I did find a Philadelphia death certificate for John N Fortune b c 1872 in Caroline County d 1936 married to Mary H Butler, mother Sarah White, father John Fortune
Sarah White was married and living with John Fortune from 1860-1900
I tend to believe my John Fortune's parents were Betsy Reeves and Thomas Fortune if for no other reason than they lived next door to each other in Caroline County....Does any of this help?