Ralph Harrison Thompson, 73, husband of fifty-two years to Barbara (Cefarelli) Thompson, passed away on May 22, 2015 at Midstate Medical Center following a lengthy illness. Born in Hartford on July 5, 1941, he was the son of the late Virginia Wilson. He was raised in Meriden and was a graduate of Wilcox Technical High School. He went on to receive an Associate of Science in Electronics Engineering from the Ward Institute of Electronics and later a Bachelor of Science in Electrical Engineering from the University of Hartford. Ralph enjoyed a long and successful career as a machine tool designer and software engineer. He worked for numerous manufacturers and industrial research institutes; Pratt and Whitney, General Electric, IBM, the United States Air Force, NASA and Westinghouse. His work led to major contributions and advancements in the fields of Industrial Automation and Computer Numerical Control. He was a loving father and husband, a true and faithful friend and a consummate professional in all things. He was a quiet and gentle man, who in his later days, freely offered kindly and wise advice to all. In addition to being devoted to his career and family, Ralph was also an avid fisherman, and a talented carpenter and auto mechanic. His life was well loved and he will be dearly missed by all who knew him. Besides his wife, he leaves behind two sons, Gary Thompson of Cheshire and Joseph Thompson of Higganum; a daughter-in-law, Melissa (Daniels) Thompson of Higganum; one sister, Phyllis Currier of Houston, TX; two nieces and many friends. Funeral services will be private. There are no calling hours.