Photo Gallery: The History of Parachuting Dogs 12/17/2013
No one can say for sure who the first dog to parachute was. This undated photo...
Library of Congress

No one can say for sure who the first dog to parachute was. This undated photo (most likely from between 1920 and 1924) shows members of the Colorado Air National Guard with dog Jeff, wearing his parachute. After making several successful jumps, he was killed in August 1924, when his chute failed to open.