NASA Photo ID: 65-H-418
Date taken: 03/20/65
Astronaut John W. Young listens intently to a conversation at the March 20 Gemini Launch Vehicle Review Meeting held in the Manned Spacecraft Operations Building, Merritt Island Launch Area. Young is the pilot for the National Aeronautics and Space Administration's GT-3 mission which is scheduled for no earlier than tue, March 23.
Source: NASA photo in my possession