Houghton Mifflin Harcourt
Harcourt: Biographies: Otis Boykin 1920 1982
Otis Boykin was a successful African American inventor whose inventions include resistors for electrical equipment and missiles, a controller for pacemakers, and a burglar-proof cash register.
Houghton Mifflin Harcourt
Harcourt: Biographies: Benjamin Bradley
Learn about inventor and African-American slave, Benjamin Bradley, developer of a steam engine large enough to run the first steam-powered warship.
Houghton Mifflin Harcourt
Harcourt: Biographies: Lewis Howard Latimer
This is an excellent biography of Lewis Howard Latimer. It discusses his joy of learning throughout his entire life, and also includes additional links to help illustrate the topics presented.