Short answers, pulled from the story.
Douglas Henderson was born on the 8th of March 1918 in Baltimore, Maryland. He was born into a family where both parents were teachers, instilling in him a deep respect for education and communication from a young age.
Jocko Henderson worked at the Baltimore station WSID starting in 1952 and later broadcast out of New York stations WOV and WADO alongside Philadelphia's WHAT and WDAS. He continued to deejay on oldies stations in Philadelphia, New York, St. Louis, Detroit, Miami, and Boston well into the 1990s.
Jocko Henderson invented a rhythmic, fast-talking style of delivery known as jive which became the direct ancestor of modern rapping. Questlove described him in a 2013 interview as unofficially the first MC for adapting a jazz style of scat singing into the late disco era.
Jocko Henderson ran for a seat in the United States House of Representatives in Pennsylvania's 2nd congressional district in 1978 to influence policy as directly as he had influenced culture. This unsuccessful bid highlighted his desire to step out of the studio and into the public square to fight for the people he had served for decades.
Jocko Henderson died in 2000 after a long battle with cancer and diabetes. He continued to deejay on oldies stations well into the 1990s and remained active in the music industry until his death.