John W.H. and Evaline Swanger, Illinois

I am trying to find more information. I believe Evaline was my GGrandmother(after marrying 2nd. Husband Jasper Cantwell). Illinois Marriage Index has listing of Marriage to Swanger in Wabash County, Ill. on 12-25-1866. Not sure if same Evaline. She had a son Charley Swanger born Wabash Co. 9-19-1867. Wondering if her father was Charles? Mother Jane? Uncle Moses? Anyone with information appreciated.
Helen