Lillie Marie Klett - Illinois

I am looking for information on my Great Grandmother Lillie Klett b. 1867 d. 1910. Her father was John C. Klett and her mother Charlotte Uinn or Winn. John Klett was German.In formation taken directly from marriage certificate. She married William A. Wallace in Decatur, Macon Co, IL in 1889. She had one child William J. Wallace. She died in Decatur, IL in 1910 and is buried in Greenwood Cemetary. later document refers to her as Lillian. Have no information on her family except that she was german and her mother's bible was in german. Thank you.