Dr. Calvert played college football for Nebraska Wesleyan at Lincoln during his freshman, sophomore, and junior years, but was unable to play his senior year due to a knee injury. He graduated in 1952, with a B.A. degree and received his M.D. degree from the University of Nebraska College of Medicine, Omaha, in 1956.
After completing his internship at Bishop Clarkson Memorial Hospital in Omaha, Dr. Calvert then went on active duty with the U.S. Air Force in Texas. After serving in the AF for two years, he went into private practice for two years. He obtained his private pilot's license in San Antonio in 1961, and then later that year he returned to active Air Force duty and became the Flight Surgeon at Carswell AFB, Fort Worth, Texas. He began an Aerospace Medicine Residency in 1963, obtaining a master's degree in Public Health in 1964 from the University of California, Berkeley. He completed residency training at the USAF School of Aerospace Medicine, Brooks AFB, San Antonio, Texas, and Wright Patterson AFB, Dayton, Ohio.
In 1966 he became the Commander of the 659th Tactical Hospital in Tachikawa, Japan, flying monthly into Vietnam and returning with wounded soldiers. In 1967 he became the Director of Aeromedical Services of the 20th Casualty Staging Flight at Tachikawa (and Yakota) AFB until 1969. In 1969 and 1970, he was Chief of Flight Medicine, SAC, Offutt AFB, Nebraska, and from 1970 to 1973 was Hospital Commander at Hahn AFB, Germany. He was promoted to the rank of Colonel in 1972 and retired from the military in January of 1980 as the Director of Aerospace Medicine at Scott AFB, Belleville, Illinois.
Dr. Calvert has logged over eighteen hundred hours in various aircraft including piloting the T-33, C23, B-52, F-4, and F-15 (last flight), with many flight hours in the C-135 and C-24. He received the Air Force Commendation Medal, Medical Service Award, Vietnam Service Medal, National Defense Service Medal, and Meritorious Service Medal.
He continued working in industrial medicine at Granite City Steel (until 1985) then retired from Chrysler in Rockford, Illinois in July 1990. After a two year journey in their motorhome, he settled in Kingsport, Tennessee.
As of 2015, Dr. Calvert resides in Overland Park, Kansas with his wife of sixty-two years, Phyllis (Manske) Calvert. He has four children, eight grandchildren, eight great grandchildren, and two sisters. He is a Mason, Shriner, and member of the Lions Club. His devotion to God through the Episcopal faith created his goodwill towards strangers as signs of spiritual grace. He enjoys swimming, bridge, wood working, spending time with family, and cruising to the golf course in his Miata convertible.