A power forward and center, he played for the Philadelphia 76ers of the National Basketball Association (NBA) from 1964 to 1972.

[6] He won the Chuck Taylor Most Valuable Player Award in the NAIA Men's Basketball Championships in 1963 and 1964.

[7] Jackson played for the United States men's national basketball team at the 1963 Pan American Games and the 1963 FIBA World Championship.

He scored 13 points and had 21 rebounds in the title-clinching game over the San Francisco Warriors in the 1967 NBA Finals.

[20][21] Jackson continued to experience chronic injuries to his left foot, including a tendon and a toe bone.

[23] He finished his degree at Pan American University and worked for the Beaumont Parks and Recreation Department starting in 1975.