Glenn Daigle was born in 1939 in Labadieville, Louisiana. After attending Louisiana State University in Baton Rouge, Louisiana, he entered the Naval Aviation Cadet Program on August 24, 1962, and was commissioned an Ensign in the U.S. Navy on January 11, 1963, receiving his Naval Flight Officer Wings in July 1963. During this time, he was awarded his Bachelor's degree from LSU in May 1963. ENS Daigle next completed RA-5C Vigilante Replacement Air Group training with RVAH-3 at NAS Sanford, Florida, and then served as a Reconnaissance Attack Navigator with RVAH-13 at NAS Sanford from August 1964 to August 1965, when he deployed with the squadron aboard the aircraft carrier USS Kitty Hawk (CVA-63). LTJG Daigle began flying combat missions over Southeast Asia in November 1965, and was forced to eject over North Vietnam and was taken as a Prisoner of War on December 22, 1965. After spending 2,610 days in captivity, LCDR Daigle was released during Operation Homecoming on February 12, 1973. He was briefly hospitalized to recover from his injuries, and then attended the University of Mississippi in Oxford, Mississippi, where he earned his Master's degree in Political Science in November 1975. His next assignment was on the staff of the Chief of Naval Operations at the Pentagon from November 1975 to April 1980, followed by service as Executive Officer and then Commanding Officer of Naval Support Activity New Orleans, Louisiana, from April 1980 to March 1981. CDR Daigle's final assignment was as a Joint Plans Officer for the Command Relations and Special Projects Branch on the staff of the Commander in Chief of U.S. Pacific Command in Hawaii from April 1981 until his retirement from the Navy on September 1, 1982. After his retirement from the Navy, Glenn attended Law School at Louisiana State University, and later taught Political Science at the Mountain Home Junior College in Mountain Home, Arkansas, from 1986 to 1995. He is married to the former Elizabeth Rose Bowles Landgridge of Rolling Fork, Mississippi.

His Silver Star Citation reads:

For conspicuous gallantry and intrepidity while interned as a Prisoner of War in North Vietnam. In December 1965, his captors, completely ignoring international agreements, subjected him to extreme mental and physical cruelties in an attempt to obtain military information and false confessions for propaganda purposes. Through his resistance to those brutalities, he contributed significantly toward the eventual abandonment of harsh treatment by the North Vietnamese, which was attracting international attention. By his determination, courage, resourcefulness, and devotion to duty, he reflected great credit upon himself and upheld the highest traditions of the Naval Service and the United States Armed Forces.