WINTHROP–Douglas T. Guenther, 65, of Winthrop formerly Lafayette passed away Monday, August 11, 2025, at his home in Winthrop. Memorial Service will be Saturday, September 20, 2025, 11:00 a.m. at St. John’s Lutheran Church, Bismarck Township, Sibley County, Minnesota, with interment following in the church cemetery. Gathering of Family and Friends will be one hour prior (10:00 a.m.-11:00 a.m.) to the service at the church. Military Honors by the Winthrop Honor Guard. Arrangements are with the Dalin-Hantge Funeral Chapel in Winthrop. Online Guest Book is available at www.hantge.com