Estelle A. (Seboldt) Sauerwein, nee Krupp, 90, of Waterloo, passed away Aug. 21, 2024, in St. Louis, Missouri. The visitation will be from 4-8 p.m. Saturday, Aug. 24 at Quernheim Funeral Home in Waterloo and from 1-2 p.m. on Sunday, Aug. 25 at Holy Cross Lutheran Church in Renault. The funeral service will be held at 2 p.m. on Sunday, Aug. 25 at Holy Cross Lutheran Church with Pastor Terry Grebing officiating. Burial will be at the church cemetery.