[1] A first baseman during his minor league career, Campbell batted left-handed, threw right-handed, stood 6 feet (1.8 m) tall and weighed 205 pounds (93 kg).

He was born in Hartsville, South Carolina — also the hometown of Bobo Newsom, a renowned MLB pitcher of the middle 20th century — and entered pro baseball in the Philadelphia Phillies' system in 1962.

The next day, Campbell registered his first big-league hit, a single off eventual Baseball Hall of Famer Tom Seaver in the seventh inning of a 6–4 loss to the New York Mets.

[2] Two days later, on April 14, his ninth-inning pinch single off Howie Reed produced the tying run and Campbell's only MLB RBI in a come-from-behind 6–5 triumph against the Montreal Expos at Busch Memorial Stadium.

He was traded to the Boston Red Sox during the 1970 offseason for veteran infielder Ducky Schofield and played one more year at the Triple-A level before leaving the game.