Isaac Howard Routt, 71, of Scottsburg, Indiana, passed away on Monday, February 8, 2021 at Norton Hospital in Louisville, Kentucky. He was born on June 27, 1949 in Cincinnati, Ohio, the son of the late Howard and Ada (Davis) Routt. Isaac was a retired designer and installer for O'Connor and Raque Company in Louisville, Kentucky, also former owner of Routt's Custom Homes and was a U.S. Marine Corp veteran serving in the 1960's. He loved to watch movies, was a gun enthusiast and an avid hunter. In addition to his parents, Isaac was preceded in death by a daughter, Kimberly Sherouse and three siblings. Survivors include his wife of 47 years, Kathy Jean (Cox) Routt; a son, Chris (Jennifer) Routt of Scottsburg, Indiana; a daughter, Jennifer (Danny) Colwell of Memphis, Indiana; three grandchildren, Tanner Mace, Grace and Claire Routt; three step grandchildren, Dustin, Kayleigh and Cameron; five step great grandchildren and four siblings. Private services were held on Wednesday, February 10, 2021 at Collins Funeral Home with Pastor Steve Gwaltney officiating. Interment was in Lexington Cemetery. Memorial contributions may be given to The Refuge c/o Collins Funeral Home in Scottsburg, Indiana. Online condolences:www.collinsfuneralhome.net.