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Clarence L. Elder

engineer and inventorBorn: 1935Birthplace: Georgia A native of Georgia, Clarence Elder founded Elder Systems Incorporated, a research and development company located in Baltimore, Maryland. Elder…

Thomas L. Jennings

inventorBorn: 1791Birthplace: New York, N.Y. A tailor in New York City, Jennings is credited with being the first African American to hold a U.S. patent. The patent, which was issued in 1821, was…

Cleto L. Rodriguez

soldier, Congressional Medal of Honor recipientBorn: 4/26/1923Birthplace: San Marcos, Tex. As a private in the U.S. Army, Company B, 148th Infantry, during World War II, Rodriguez became an expert…

E. L. Konigsburg

Children's book authorBorn: Feb. 10, 1930Birthplace: New York, N.Y. Born in New York City, Elaine Lobl grew up in small towns in Pennsylvania. She was the first member of her family to attend…

Donalee L. Tabern

Born: 1900Birthplace: Bowling Green, Ohio Thio-barbituric acid derivatives—Volwiler and Tabern came up with Pentothal when they were seeking an anesthetic which could be injected directly into the…

Arthur L. Schawlow

Born: 1921Birthplace: Mount Vernon, N.Y Laser—Co-inventor of the laser. Schawlow worked with Charles H. Townes who was inducted into the Inventors Hall of Fame in 1976. Today the laser is prevalent…

Waldo L. Semon

Born: 1898Birthplace: Demopolis, Ala. PVC plastisols—Semon's work turned polyvinyl chloride (PVC), first considered worthless, into the world's second-best selling plastic. He also provided the…

Christopher L. Sholes

Born: 1819Birthplace: Danville, Pa. Typewriting machine—Publisher and politician Sholes invented the first practical typewriting machine (the name was coined by the Scientific American journal).…

Roger L. Stevens

theater producer, fund-raiser for the artsBorn: 3/12/1910Birthplace: Detroit, Michigan Real-estate mogul Stevens became a highly respected Broadway producer, often collaborating with Robert…

R. L. Stine

(Robert Lawrence Stine)authorBorn: 1/8/1943Birthplace: Columbus, Ohio Previously a junior high school teacher and an editor, Stine published his first book, How to Be Funny: An Extremely Silly…