From NKAA, Notable Kentucky African Americans Database (main entry)

Don Johnson was born and reared in Covington, KY. He attended William Grant High School, where he was a noted talent in basketball, baseball, and track and field. He played baseball and softball informally until he was picked up by the Chicago American Giants in 1949, later playing for the Philadelphia Stars, Baltimore Elite Giants, and the Detroit Stars, all Negro League teams.

Johnson was still playing baseball in the White Oak League in 1999. He was living in Cincinnati in 2005 and died there in 2016.

For more see Don Johnson at the Negro League Baseball Players Association website; J. Erardi, "Don Johnson, pulled out of the stands into a career," The Cincinnati Enquirer, 7/4/1999; Shadows of the past, by L. Stout.; and his obituaries at the Legacy site and at Find a Grave.