David was born on May 2, 1941 in Wichita, KS to Howard and Mary (Fleming) Lynch. He grew up in Wichita, KS. He had many talents and his creativity was uniquely limitless. He never viewed someone as a stranger, he enjoyed engaging others in conversation and he always had a positive outlook on everything he did. At a young age he mastered the yo-yo and excelled on the basketball court. He graduated in 1960 from Kapaun Catholic High School in the first graduating class to advance from freshman through senior year. After graduating high school, he attended Hutchinson Junior College and then traveled to St. Paul, NE for a year where he was one of the first, and the last surviving employees of Dorothy Lynch salad dressing. Dorothy was his aunt and the dressing was served in the basement of the American Legion hall. Shortly after, he purchased multiple apartment complexes in Wichita and enlisted in the National Guard and then the United States Army. He was stationed at Fort Polk in LA until receiving an honorable discharge in 1966. After his military adventures he traveled to Europe on the Queen Mary to purchase aircraft instrument parts. He returned to Wichita and opened an audio equipment business, married Vivian (Wolf) of Wichita, KS, on April 26, 1969 at St. Joseph Church and later owned and operated a pizza restaurant.

In 1976 David moved his family to Olathe, KS where he started companies specializing in restaurant supplies and athletic field maintenance equipment, both still operating. He obtained two design patents and one utility patent. He joined the Kansas City Hibernian chapter and had an ongoing passion for genealogy, travel and Indian War reenactments. He was also a collector of military artwork and relics from the mid to late 1800's. In November of 2021, he had the privilege to be a part of the Honor Flight to Washington, DC and was chosen to participate in the laying of a wreath on the Tomb of the Unknown Soldier.  David was preceded in death by his parents Howard and Mary Lynch, his sister Sharon Wilson and son Howard Lynch.

In lieu of flowers, the family requests that donations be made to the ALS Therapy Development Institute so that a cure to this fearsome disease can be found.