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Keith H. "Sonny" Coulter, 81, of Hermann, MO passed away Friday, December 26, 2025, in Hermann.
Keith was born in Hermann, MO on December 19, 1944, the son of the late Harvey G. & Fama O. (Dilthey) Coulter.
He was united in marriage to Margaret Heberle on August 7, 1965, at St. George Church.
Keith drove a truck for Tri-County Trucking for many years.
Keith was a member of St. George Church and a former member of the Hermann Area Volunteer Fire Dept. He enjoyed working on his farm tending to his cattle, hunting & fishing, & spending time going to his grandchildren's ball games.
He is survived by his wife Margaret, a daughter Kate Schannuth & husband Craig of Hermann, a son Steve Coulter & wife Julie of New Haven, a sister Caroll Scheidegger of Hermann, a brother in-law Gene Kotthoff & wife Mary of St. Charles, a sister in-law Joyce Rupp & husband Neil of Washington, a brother in-law Ron Heberle & wife Kathy of Hermann, grandchildren Jake Schannuth & wife Sarah, Josh Schannuth, Tess Yoggerst & husband Spencer, Emily Coulter & (Charlie), Nicholas Coulter, Zachary Coulter & (Allison), great granddaughters Sloane & Smithy, and is also survived by many nieces & nephews.
Keith was preceded in death by his parents, one sister Phyllis Kotthoff, & one brother-in-law Calvin Scheidegger.
Visitation will be held Friday, January 2, 2026, from 8:30 to 11:00 a.m. at St. George Church, Hermann, where services will follow at 11:00 a.m.
Burial will be at the St. George Cemetery. Memorial donations may be given to St. George School and Hermann Area Volunteer Fire Dept.