Keith William Hart, 84, of Kendallville, Indiana, died Thursday, March 3, 2022, at his residence surrounded by his family. He was born February 9, 1938, in Kendallville, Indiana, to Mahlon Keith and Lillian Elizabeth (Kammerer) Hart. He graduated from Kendallville High School in 1956 and Greer Technical Institute in Joliet, Illinois in 1958. Keith honorably served in the U.S. Army from 1961 to 1963 and continued in the Army Reserves for four years. On December 14, 1963, in Kendallville he married Carol Ann Alford. He retired as a maintenance engineer at A-1 Production in Kendallville where he had worked for 37 ½ years. From 1975 to 2021, Keith owned and operated Hart Hauling and Excavation in Kendallville where he did small residential excavation and sold topsoil. Mr. Hart was a life-long member of St. John Lutheran Church in Kendallville where he was baptized as an infant and confirmed in 1952. He was a 50-year member of the church choir and served as an Elder for many years. He also served as Sunday school superintendent and taught Sunday school for 20 years. Keith was a member of the Tuesday Boys at St. John, which was a group of individuals that met and did volunteer maintenance at the church and school. Keith could always be counted on to help at St. John in any way possible. He was also a member of American Legion Post 86 in Kendallville. Keith was an avid outdoorsman. He loved to hunt deer and go fishing. He also enjoyed American Indian artifacts. Surviving are his wife of 58 years, Carol A. Hart of Kendallville; three sons, Dr. Kevin K. (Shaun) Hart of Leo, Craig D. (Janet) Hart of Wolcottville, and Bruce W. (Tracey) Hart of Kendallville; eight grandchildren, Alex Hart, David (Susie) Hart, Kaylie Hart, Hannah Hart, Jared Sirk, Jacob Sirk, Reagan Hart, and John Welsheimer; two great-grandchildren; and a brother, Lynn A. (Colleen) Hart of Wolcottville. He was preceded in death by three brothers, David H. Hart, Richard A. Hart, and James L. Hart. Visitation will be Monday, March 7, 2022, from 2 p.m. to 8 p.m. at Young Family Funeral Home, Kendallville Chapel, 222 South State Street, Kendallville and one hour prior to the service at St. Mark's Lutheran Church in Auburn on Tuesday. Funeral services will be Tuesday, March 8, 2022, at 11 a.m. at St. Mark's Lutheran Church, 211 W. 9th Street, Auburn with Pastor Jon Hunter and Rev. Dr. Kent Hunter officiating. Burial will follow at Lake View Cemetery in Kendallville. Pallbearers are Alex Hart, David Hart, Brennen Walton, John Welsheimer, Trace Snyder, Darren Alford, Kelly Kammerer, and Klint Kammerer. Honor guard services will be provided by the Veterans Honor Guard and active duty members of the U.S. Army. Keith's funeral service on Tuesday will also live stream on the Young Family Funeral Home Facebook page beginning at 11 a.m. for those unable to attend in person. Preferred memorials may be directed to St. John Lutheran School, St. Mark's Lutheran Church, Church Doctor Ministries, or Lutheran Indian Ministries. View a video tribute after Monday or share memories and condolences at www.youngfamilyfuneralhome.com