NASA Photo ID: 65-H-446
Date Taken: 03/23/65
National Aeronautics and Space Administration's white room workers make final preparations for closing the hatches on the Gemini 3 spacecraft for the launch on March 23. The GT-3 three-orbit mission was successfully launched at 9:24a.m. CST, Tuesday, March 23. Astronauts Virgil I. (Gus) Grissom and John W. Young were command pilot and pilot, respectively.
Source: NASA photo in my possession