Jack, I am searching Michigan near Chicago and surrounding areas for my ancestors and trying to make sense of who my Grandfather's real Mother was due to conflicting names on records and that task brought me to the name MUELLER on the 1900 Chicago, IL. Cook County USA census. There, living on s. Elizabeth St. with MUELLER are two daughters of MUELLER, but the daughters surname is SCHLEE, not sure of spelling. It looks like the wife was a SCHLEE in a previous marriage. MUELLER ALO ???, can't make it all out. Head of household. b. Dec.1861 Switzerland. MARY, wife, b.Dec.1860, Germany SCHLEE MARGARET, dau.b.Jul.1889,Illinoise SCHLEE Kati, Dau.b.Apr.1891, Illinois MUELLER GENWAFR ? not sure of spelling, Dau. b.Sept.1897 Let me know if you want a census copy and if this is of any help. Regards, Patricia Texas, USA