The 6 ft 4 in (1.93 m), 200 lb (91 kg) right-hander was signed by the Chicago White Sox as an amateur free agent before the 1952 season.

The White Sox had sent Larry Doby, Jack Harshman and Jim Marshall to the Orioles for Billy Goodman, Tito Francona and Ray Moore on December 3, 1957.

[4] Eventually, the deal was worked out, and Heman went 6-12 with a 4.26 ERA for the Pacific Coast League's San Diego Padres in 1959.

[6] From there, he settled down, earning his only big league save in his next appearance three days later against the Kansas City Athletics at Municipal Stadium.

On June 22, he and shortstop Ken Hamlin were sent to the Toronto Maple Leafs of the International League for second baseman Billy Moran.