Isaac Dunn, b 1780-90 maybe Fayette Co PA by 180 was in Butler Co OH and died 1840 in Randolph Co. IN. Married Julia McGrew, b. @1794,maybe VA, d. 1860 Logan Co ILL. Children: Joseph b. @ 1810 OH; Thomas, b. @ 1814 Darke Co OH, Wm. S. Dunn, b. 10 Apr. 1817 Darke Co OH, Elizabeth "Betsy" Dunn, Andrew Dunn b. 1823 OH, Benjamin Dunn, Mary Dunn, Milton Dunn (my ancestor), b. 8 Apr. 1830 Darke Co OH, d 17 Nov. 1905 Amboy IN;Martha Ann Dunn, b. Nov 1832, darke Co OH, John S. Dunn, b. @1810 OH, Julia Ann Dunn, b. 1838 OH, Amanda M. Dunn, B. 1949 IN. The last two might have been children of John. Have marriage info on some of the children. According to my findings Andrew married Sarah Ann Campbell, b. 1834'35 OH, married 29 Dec. 1853 Darke co. OH, buried Emden ILL. Children were Sarah 1 1851 IN; Olaphe d. age 15, buried Emden Logan Co; Bell b. 1858; Emma E. b @ 1863, Grant b @ 1865; Andrew H. B. @ 1866, Leroy b. @ 1873, and Charles E. B. @ 1879. The only Julia Ann Dunn I have was b. 1838 OH, married 25 Sept. 1856 Randolph Co IN to Mahlon P. Fouse, d. after 1919.Not sure of parents, for some reason unknown to me right now I have made a note that she might be the daughter of John S. Dunn. I haven't worked on the genealogy for several years now and don't have all of my "stuff" right here so can't look up any more right now. Contact me if you are interested in more and I'll try and hunt it up for you.