
Intro

Benjamin Banneker

Ronald Demon

Lonnie Johnson

Benjamin Bradley

Norbert

Andrew Jackson

Lewis Howard Latimer

MG

Jan Ernst Matzeliger

Garrett Morgan

Granville T. Woods

David N. Crosthwait

14. David N. Crosthwait, Jr. (1898-1976)
Notable inventions: Heating systems for huge buildings, vacuum pump, automobile turn signal, and thermostat control
An expert in central air conditioning and heat ventilation systems, Crosthwait took his knowledge of electrical engineering and built everything from vacuum pumps to temperature regulating devices. He would go on to accomplish one of the biggest feats of any 20th century inventor—creating the heating systems for Rockefeller Center and Radio City Music Hall. Someone was in an empire state of mind.
Roscoe L. Koontz

Frederick McKinley

Alexander Miles

Otis Boykin

Henry Blair

Richard Spikes

Elijah McCoy

John Henry Thompson

Kenneth J. Dunkley

Henry Sampson

George R. Carruthers

James Edward West

Mark Dean
