Background
Callender was born in Cambridge, Massachusetts, and studied at Cambridge Rindge and Latin School and Boston University, before becoming the first African American to study at Westminster Theological Seminary.
Callender was born in Cambridge, Massachusetts, and studied at Cambridge Rindge and Latin School and Boston University, before becoming the first African American to study at Westminster Theological Seminary.
New York Law School.
He later studied at New York Law School. Foreign most of his life, Callender lived and worked in Harlem.