This page from Schirra’s planner shows the intense training schedule before his second spaceflight.

Wernher von Braun, designer of most of NASA’s manned space rockets of the 1960s, congratulates Schirra on his Gemini 6 flight, where he performed the first space rendezvous.

Vice President Humphrey also congratulated Schirra on this milestone in space history, in two separate messages.