|Date of birth:February 20, 1941|
|Place of birth: Milwaukee, Wisconsin|
|College: Michigan State|
|Undrafted in 1962|
|Debuted in 1964|
|Last played in 1974|
|Dallas Cowboys (1964–1974)|
David Francis Manders (born February 20, 1941 in Milwaukee, Wisconsin) was an American football center in the National Football League from 1964 through 1974. He played college football at Michigan State University. He graduated from Kingsford High School and played in 2 Super Bowls with the Dallas Cowboys, winning one.
Early Years 
His number 51 is only one of three numbers retired by the school, along with Dick Berlinski and Tim Kearney.
In 1980 he was inducted into the Upper Peninsula Sports Hall of Fame.
College career 
Professional career 
After spending two years playing semi-pro football in the United Football League for teams in Grand Rapids and Toledo, Manders called the Cowboys front office and asked for another chance, he rejoined the Cowboys and made the team in 1964 as a center.
Nicknamed "Dog" by his teammates, he was quick, strong and had huge legs. He was always considered to be one of the hardest-working players on the team.
He was a starter in the Cowboys first Super Bowl-Super Bowl V, held in Miami on January 17 1971 against the Baltimore Colts. He was also involved in one of the game's controversial plays, when the Cowboys Duane Thomas fumbled the ball on the Colts two-yard line, and although Manders recovered the ball, the officials still awarded it to the Colts, who won their first Super Bowl as Jim O'Brien kicked a 32-yard field goal with time running out for a 16-13 victory.
In 1973, he retired due to a contract dispute, but by the month of September, he was back working out with the team. He played in the majority of games during that season, although John Fitzgerald was the starter at center for the Cowboys. He continued splitting time with Fitzgerald until his retirement at the end of the 1974 season.