21. Thomas Alva Edison, 1847-1931.
Elected 1960. Inventor. Pioneered the revolution in technology by establishing the first industrial research laboratory from which came a multitude of inventions: the incandescent electric light, phonograph, motion-picture camera, storage battery, mimeograph anddictating machine. Sculptor: Bryant Baker,
22. Orville Wright, 1871-1948. Elected 1965. Aviation pioneer and inventor. Made the first flight in a heavier-than-air craft, remaining aloft 12 sec. For a distance of 120ft. At Kitty Hawk, N.C. in 1903. Sculptor: Paul Fjelde, 1967.
23. Albert Abraham Michelson, 1852-1931. Elected 1970. Experimental physicist who excelled in measurement of light and optics. First American to receive a Nobel Prize in science. Sculptor: Elisabeth Gordon Chandler, 1973.
24. George Washington Carver, 1864-1943. Elected 1973. Agricultural researcher. Sculptor: Richmond Barthe, 1977.
25. Thomas Paine, 1737-1809. Elected 1945. Writer and political reformer. His pamphlet, "Common Sense," aroused Americans to declare independence in 1776. Sculptor: Malvina Hoffman, 1952.