Jack was born on November 21, 1928 in Salina, Kansas. He passed on July 4, 2012 at age 83 at his home in Aurora, Colorado. He is survived by his wife, Judy, and five children, Jack Alan, Rick, Traci, Chuck, Chris and seventeen grandchildren. He was preceded in death by his parents, Charles and Lillian, his brother, Charles, his first wife, Alice Reese, and his son, Timothy Dean. Jack graduated from the University of Kansas with a degree in Architectural Engineering. He was then drafted into the Army to serve in Korea from 1950 to 1952 as a First Lieutenant. Jack started his own structural engineering company, Jack D. Gillum and Associates in St. Louis, Missouri in the early sixties. During that time, his firm received many rewards and became one of the prominent engineering companies in the world including the design of the University of Riyadh in Saudi Arabia, and locally, Tabor Center in Denver. He was respected and admired by many in his profession. Jack was a devoted family man, spending many happy hours with his family and friends fly fishing, skiing and traveling the globe. He and his wife, Judy, celebrated their 39th wedding anniversary on June 1st. In lieu of flowers, the family is requesting that those who wish may donate to the Alzheimer's Association - Colorado Chapter, 455 Sherman Street, #500, Denver, Colorado 80203. A Memorial Service will be held on Tuesday, July 10, 2012 at 11:00am at Horan & McConaty Family Chapel, 5303 East County Line Road (one block west of South Holly Street) in Centennial, Colorado 80122. A Reception will follow at Horan & McConaty. Please share your memories of Jack and condolences with his family by signing the guestbook.