Siegfried Hansen (March 29, 1912-June 28, 2002) was an American electrical engineer and inventor notable for his development of the early Mark I space suit., a role that earned him appellations of "Space Suit Father" and "Space Suit Pioneer". The Mark I was significant for its hard torso and flexible arms, providing constant volume while allowing the occupant to manipulate the external environment. These efforts broke briefly into the mainstream with Hansen's in-suit appearance on the cover of the December 1957 issue of Look magazine.
- Baltimore Sun;Siegfried Hansen,90, an electrical engineer who 50 years ago pioneered the hard spacesuit now used in NASA missions, died of pneumonia June 28 in Los Angeles.July 16, 2002
- New York Times:Siegfried Hansen, Electrical Engineer and Inventor, Dies at 90;By THE ASSOCIATED PRESS; July 24, 2002
- Los Angeles Times:Siegfried Hansen, 90; Space Suit Pioneer;Obituaries;July 14, 2002|ELAINE WOO
- LOOK Magazine - December 10, 1957