I've expanded Job's family quite a bit in the last few years. His multiple wives remain a mystery but the number of descendants is growing.
Take a look at Ancestry. I've posted a copy of Job's picture.
Job's children, as I have them, follow.
Children by unknown wife / wives:
1 Joshua DEVOL (2), b. 1818 in Otsego Co NY, m. Mary [---] EGAN, bef. 1848, m. Olive [---] BETTIS, 8 November 1861 in Otsego Co NY, m. Margaret Amelia "Maggie" MARTIN, aft. June 1865, d. July 1869 in Yankton Co SD; 5 children
2 David DEVOL (8), b. 1828 in Otsego Co NY, m. Calphurnia [---] DEVOL, ca. 1852, d. 1910 in Yankton Co SD; 4 children
3 Hiram N DEVOL, b. ca. 1841 in NY
Job's children by Diana?:
1 William K DEVOL, b. 1844 in NY, d. 14 December 1864 in NC
2 Mary A DEVOL (2), b. November 1847 in NY, m. John D SEARS, aft. July 1860; 2 children
3 Ambrozelle DEVOL, b. ca. 1849 in NY[possibly same as next child]
4 Ambrose L DEVOL, b. 15 September 1850 in Broome Co NY, m. Julia E [---] DEVOL, ca. 1872; 5 children
5 Thomas F DEVOL, b. 22 March 1852 in NY, m. Eunice A [---] DEVOL, ca. 1872, m. Lula O BALDRIDGE, ca. 1909, d. 25 March 1944 in Los Angeles Co CA; 1 child