"Six of the seven NASA Mercury astronauts and Project Mercury director stand behind the sign for NASA's Manned Spacecraft Center temporary quarters in southeast Houston March 7, 1962. The astronauts met in Houston for the first time and attended an all-day briefing at the temporary offices at 3201 Brock. From left, Donald K. ""Deke"" Slayton, Leroy Gordon ""Gordo"" Cooper Jr., Alan Shepard, Project Mercury director Robert Gilruth, Scott Carpenter, Walter ""Wally"" Schirra Jr. and Virgil I. ""Gus"" Grissom. John Glenn is not in the photo. Photo: Staff File Photo"
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