I'm looking for more information on Sophia Gahlbeck whose parents were Charles C Gahlbeck and Mary C. Storm (Staurm). They lived in Boone County Illinois. She is the only child not listed on the 1880 or 1900 census records (the 1890 census record was destroyed by fire). She only shows up through a cemetary record listing her as the child of the above parents. Her birth year is 1882. She died in 1917 and is buried in the Belvidere Cemetery in Belvidere, Boone, Illinois. She was married to Herman Stahl.