John Parker, inventor and businessman, was also a prominent Underground Railroad conductor before the Civil War. He was reputedly responsible for the rescue of nearly 1,000 enslaved people between 1845 and 1865. Parker repeatedly crossed the Ohio River from his home in Ripley, Ohio, often going as far as 20 miles on foot into Kentucky to … Read MoreJohn P. Parker (1827-1900)
The work of James Edward Maceo West transformed the way people around the world hear and transmit sound. In 1962, West, then a research scientist at Bell Laboratories, developed the foil electret microphone in partnership with his colleague Dr. Gerhard M. Sessler. Until that time, most microphones, which transform … Read MoreJames Edward Maceo West (1931- )
Alfred L. Cralle was an African American businessman and inventor best known for inventing the ice cream scoop in 1897. Cralle was born on September 4, 1866, in Kenbridge, Lunenburg County, Virginia, just after the end of the American Civil War. He attended local schools and worked for his father in … Read MoreAlfred L. Cralle (1866–1920)
Richard Bowie Spikes was a prolific inventor with eight patents to his name, awarded between 1907 and 1946. Primarily interested in automobile mechanics, Spikes also sought to improve the operation of items as varied as barber chairs and trolley cars. Professionally, he worked as a mechanic, … Read MoreRichard Spikes (1878-1965)
The inventor Otis Frank Boykin, known for inventing the wire precision resistor, was born on August 29, 1920 in Dallas, Texas. Boykin’s mother, Sarah Boykin, worked as a maid before dying in 1921 before Boykin’s first birthday. Boykin’s father, Walter Boykin, worked as a carpenter … Read MoreOtis Frank Boykin (1920-1982)
Frederick McKinley Jones was a prolific early 20th century black inventor who helped to revolutionize both the cinema and refrigeration industries. Between 1919 and 1945 he patented more than sixty inventions in divergent fields with forty of those patents in refrigeration. He is best known … Read MoreFrederick McKinley Jones (1893-1961)
Dr. Mark Dean, an American inventor and computer engineer, is one of the most important figures in the emergence of the personal computer in the late 20th Century. Three of the nine patents on the original personal computer (PC) by International Business Machines (IBM) are … Read MoreMark Dean (1957- )
