 He relocated back to Okemah, Oklahoma, where he remained until his death.Johnson died of congestive heart failure in Okemah, Okfuskee County, Oklahoma, on February 10, 1983 (age 71 years, 152 days), and was buried at Highland Cemetery in Okemah.Johnson and his wife Imogene had a son, Glen D. Johnson Jr., who served as Oklahoma's youngest Speaker of the House, then served in higher education—for ten years as president of Southeastern Oklahoma State University, then as chancellor of Oklahoma's state system of higher education.