Dan Alderson

Daniel John Alderson was a scientist at the Jet Propulsion Laboratory in California, and a prominent participant in science fiction fandom. He came from a middle-class family and had diabetes. A high school science fair project on the gravitational fields of non-spherical bodies won him a college scholarship to Caltech and a job at the Jet Propulsion Laboratory, where he wrote the software used to navigate Voyagers 1 and 2.

31 October 1941

Born on the same birth date (31 October 1941): Derek Bell (racing driver) • Lucious Jackson • Sally Kirkland

Born on the same birth day (31 October): Alonso Núñez de Haro y Peralta • Anne Claude de Caylus • Brian Doyle-Murray • Galileo Ferraris • Mats Näslund • Muriel Duckworth • Neal Stephenson • Toshizō Nishio

Born in the same month (October 1941): Ahmet Mete Işıkara • Art Shamsky • Dave Costa • Derek Bell (racing driver) • Diana Hendry • Dick Trickle • Earl Thomas Conley • George Davies (retailer) • Irish republicanism • John Snow (cricketer) • Mel Counts • Roy Blount Jr. • Simon Ward