PIONEERS OF MODERN ROCKETRY

http://www.gsfc.nasa.gov/gsfc/service/gallery/fact_sheets/general/goddard/goddard.htm

Dr. Robert H. Goddard

1882-1945

http://www.informatics.org/museum/tsiol.html

Konstantin Tsiolkovsky

1857-1935

http://www.windows.ucar.edu/tour/link=/people/today/oberth.html

Hermann Oberth

1894-1995