Robert E. Prange, 87, of Waterloo, passed away Feb. 14, 2026, in Columbia. The memorial visitation will be from 5-7 p.m. on Tuesday, Feb. 24 at Quernheim Funeral Home in Waterloo. The memorial service will be held at 7 p.m. on Tuesday, Feb. 24 at Quernheim Funeral Home with Pastor Benjamin Hayter officiating.