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Early , Jr. Caldwell is the son of Early Caldwell and Minnie Williams (1884-?). His siblings were Joel Caldwell, Veatrice Caldwell, Theola Caldwell, Mattie B. Caldwell.
Early , Jr. Caldwell's wife is not known. They had four known children named Ronald Caldwell, Vester Caldwell, Sisilla Caldwell, and Toni Caldwell.