Doolans are not my line but I have done research in Marion Co., IL and in the book, "Brinkerhoff's History of Marion County, IL" published in 1909 it mentions several members of the Doolen family. They seemed to be living in the Foster Township. It appears that Jesse Doolen came to the township about 1836. "The first child born in the township was Sallie, daughter of Hardy Foster. She married William Doolen" p. 157 Note: Some time before the Civil War...maybe 1855?...a large wagon train of folks from Marion Co., IL came to Wise Co., TX and settled. John Poole Houston