I couldn't find a Jacob Yazel born in 1849 in Indiana; I did find a Jacob Yazel born 1841 in Ohio. He died in 1907 in Marshall County, Indiana.
His parents were: Solomon Yeazel b. 1815 Fleming Co., KY
died 7 Feb 1863 in Allen County Ohio
Elizabeth Weaver b. 1815 Kentucky
Son Jacob Yazel
died 1907 Marshall Co., IN
Primarily, I used the Family Tree at FamilySearch.org. I also searched under the records of both Ohio and Indiana at this site and at HeritageQuest online; I found a Jacob Yazel that received a land grant (Cincinnati, Ohio) in 1802, but I don't know where he fits in.
I found Jacob, born 1841 in the 1880 Census, in the 1900 Census. You'll want to look at those yourself and check out the children. If you want the exact citation, I will gather that up and send it, along. I've stayed up past my bedtime, again!