DeBerry was born in Cheraw, South Carolina in 1938. In high school, DeBerry was a four-sport varsity letter winner, lettering five times in baseball, three times each in football and basketball and twice in track. He was also an all-state selection in baseball and football. DeBerry graduated in 1960 from Wofford College in Spartanburg, South Carolina, where he lettered in football and baseball. He was also active in the Kappa Sigma Fraternity while in college. After six years of coaching and teaching in the South Carolina high school ranks, DeBerry returned to Wofford, where he coached for two years as an assistant when Wofford won 21 consecutive games and was ranked first in the NAIA. For the next nine years, 1971 to 1979, DeBerry was an assistant coach at Appalachian State University. While DeBerry was there, Appalachian State was ranked in the top 10 nationally in either rushing, total offense or scoring offense three times. In 1974, the team ranked sixth nationally in pass defense when he was defensive coordinator.
Air Force football
hired DeBerry in 1980 as the Air Force Academy quarterbacks coach. The next year, DeBerry was promoted to offensive coordinator. In 1982, Air Force posted an 8-5 record while averaging 30.4 points per game, and beat Vanderbilt in the 1982 Hall of Fame Classic. After the 1983 season, Hatfield left Air Force for Arkansas after the Falcons' 10-2 season and Independence Bowl victory. DeBerry was promoted to head coach. During DeBerry's tenure as head coach, Air Force won at least eight games 11 different seasons. DeBerry's first team, in 1984, was 8–4 and beat Virginia Tech in the 1984 Independence Bowl. The next year, the Falcons won 12 games, and were ranked as high as #4 nationally until a 28–21 loss at BYU. In the final Associated Press poll, the Falcons ranked eighth. DeBerry coached the Falcons to three Western Athletic Conference championships: 1985, 1995, and 1998. The 1998 team's 12–1 record completed the first back-to-back 10-win seasons in school history, and finished the season ranked 10th nationally. DeBerry's Falcons dominated the Commander-in-Chief's Trophy series contested yearly with arch rival military academies Army and Navy. Air Force won the trophy 14 times and shared it once in DeBerry's 21 seasons. However, DeBerry lost the AF-Navy game and, subsequently, the CIC trophy each of his last 4 years at Air Force. He was a combined 34–8 against the Black Knights and Midshipmen and is the winningest coach in service academy history. DeBerry led the Academy to 12 bowl games, in which he had a 6–6 record. Although DeBerry had been portrayed as a role-model for most of his career, he came under fire for controversial racial remarks made he made in October 2005 after a 48–10 loss to Texas Christian University. DeBerry said TCU "had a lot more Afro-American players than we did and they ran a lot faster than we did. Afro-American kids can run very well. That doesn't mean that Caucasian kids and other descents can't run, but it's very obvious to me that they run extremely well." Earlier that year, DeBerry had been criticized for a banner posted in the team's locker room that was interpreted by some as inappropriate religious proselytizing. On December 15, 2006, DeBerry announced his retirement. He now splits his retirement time between South Carolina and Oklahoma, where he owns homes.
Other positions and awards
DeBerry was named WACCoach of the Year three times in his career, and in 1985, won the Paul "Bear" Bryant Award as NCAA college football's coach of the year. DeBerry was also awarded the State Farm Coach of Distinction award in 2001, and was inducted into the South Carolina Sports Hall of Fame. DeBerry received an honorary doctorate of humanities from Wofford during its graduation ceremony in 2003. In 1996, DeBerry served as president of the American Football Coaches Association, and is currently the chairman of the AFCA ethics committee. He was honored by the Independence Bowl as a member of its Hall of Fame. In 2005, DeBerry was honored with induction into the Colorado SpringsSports Hall of Fame.