 Hillar Rootare, a materials scientist, is best known for his work in the development of mercury porosimetry, high pressure liquid chromatography, and the formulation of the Rootare-Prenzlow Equation.In journalism, Edmund S. Valtman, a successful editorial cartoonist, won the Pulitzer Prize for Editorial Cartooning.Ene Riisna is an Estonian-born American award-winning television producer, known for her work on the American news program 20/20.