5 space vehicles, 6 flights, 7 launches, and a space smuggler...
A summary of John Young's career:
1) Operated the largest number of vehicle classes in space:
--Gemini capsule (Gemini 3, 10)
--Apollo capsule (Apollo 10, 16)
--Apollo lander (Apollo 10, 16)
--Apollo rover (Apollo 16)
--Shuttle (STS-1, STS-9)
2) First human to make six space flights (2 Gemini, 2 Apollo, 2 shuttle)
3) First human to make seven launches into space (Apollo 16 featured launches from the Earth and moon)
4) Longest astronaut career
5) Possibly the first space smuggler
His Naval aviation career also garnered recognition at high levels. ("I got a telegram from the Chief of Naval Operations asking me not to do this anymore." — Young, describing an air-to-air missile test in which he and another pilot approached each other at Mach 3, risking destruction of both aircraft.)