John Frederick Adderley, 69, of Greensburg, passed away at 9:15 p.m. on Saturday, October 2, 2021 at his residence. He was born on September 28, 1952 in St. Louis, Missouri, the son of Boyd and Joyce (Cross) Adderley. John was born and raised in St. Louis, Missouri. He graduated from Jennings Senior High School and from Ranken Tech College, both in St. Louis and he had received several certificates in many different engineering fields. He was an engineer having retired in 2016 from the City of Tucson. He had also worked for Monsanto at the Life Science Headquarters. He was a veteran having served with the U.S. Navy in Vietnam on the USS Epperson. John was an avid Ham Radio operator and enjoyed traveling in the southwest. He married Peggy Kansteiner in St. Louis on May 1, 1982 and she preceded him in death on February 16, 2015. Survivors include his son, Shannon (Nancy) Adderley of Greensburg; his sister, Tammy Adderley of St. Louis, Missouri; his brother, David (Maria) Adderley of St. Louis, Missouri; his grandchildren, Jessica, David & Cameron; his great grandchildren, Orion & Rayden; his nephews, Jared & Aaron and niece, Hanna; great niece, Lydia. He was preceded in death by his wife, parents and great grandson, Jax Lakes. Following his wishes he will be cremated. A celebration of life will be held at a later date in Missouri. The Bass & Gasper Funeral Home in Westport has been entrusted with handling the arrangements. Memorial contributions may be made through the funeral home to Our Hospice of South Central Indiana.