Gemini 4 Astronauts Ed White and Jim McDivitt prior to the…

Gemini 4 

Astronauts Ed White and Jim McDivitt prior to the Gemini 4 flight, June 1965.

The Gemini 4 flight was a 4 day, 66 earth orbit mission.  The mission also features White doing a 20 minute space walk – the first American space walk.

Ed White later became one of the first American Astronauts to perish when Apollo 1 went up in flames.

(via Apollo Program)