High-pressure pumps for larger missiles had been discussed by rocket pioneers such as Hermann Oberth.

He was the most innovative of the early rocket pioneers.

Reinhold Tiling (June 13, 1893 - October 11, 1933) was a German engineer, pilot and a rocket pioneer.

See images of rocket parts, NASA's launch vehicles and rocket pioneers.

Rudolf Nebel, rocket pioneer and engineer (21 March 1894 - 18 September 1978)

Cornog was a close associate of rocket pioneer and occultist Jack Parsons.

Marjorie Cameron, artist, occultist, actress, and wife of rocket pioneer and occultist Jack Parsons.

Klaus Riedel (1907-1944), German rocket pioneer, worked on the V-2 missile programme at Peenemünde.

Klaus Riedel (August 2, 1907 - August 4, 1944) was a German rocket pioneer.

William Hale (1797-1870), was a British inventor and rocket pioneer.