http://imgur.com/BUYbqic I can make out Neil Armstrong, Alan Shepard, Buzz Aldrin, and John Young, I'd really like to know about the others and do some more research on these people.
Under John Young you have Tom Stafford. On Gemini 6 and 9 as crew, and commander of Apollo 10, which tested the lunar module (LEM) in moon orbit, but did not land.
Below Tom Stafford, you have Jim Lovell, the commander of the ill-fated Apollo 13 mission. He was also on Apollo 8, and was one of the 3 men along with Frank Borman and Bill Anders to be the first men to orbit the moon.
The middle bottom is signed by Gene Cernan, the last man to stand on the moon.
Above Gene is Dave Scott, the commander of Apollo 15, and the first to drive a car on the moon.
The middle signature is interesting. The name signed is Charles Conrad, but he went by the name "Pete" Conrad. Pete was the commander of Apollo 12, and walked on the moon.