Cooper was the son of Algernon Johnson Cooper Sr. and Gladys Catherine (Mouton) Cooper. Cooper was
Catholic, and his family was the first to have three generations of African Americans attend Notre Dame. His siblings include
Algernon J. Cooper Jr., one of the first Black mayors in the nation;
Peggy Cooper Cafritz, a notable civil rights activist and major donor to the arts in
Washington, DC; an AIDS activist and
Democratic Party political strategist. Cooper was divorced and had a son and two daughters. ==References==