Who were the three men who first landed on the moon?

You're question is not very clear since only 2 men landed at any one time. The first lunar landing mission (Apollo 11) was flown by Neil Armstrong, Buzz Aldrin and Michael Collins. Armstrong & Aldrin landed on the moon while Collins stayed in lunar orbit. The pilot during the actual landing was Armstrong. Aldrin fed information to Armstrong so Armstrong could keep his eyes on the surface and search for an appropriate landing spot.

The second crew to land was Pete Conrad and Alan Bean aboard Apollo 12. Richard Gordon was the CMP who stayed in lunar orbit. Conrad performed the actual landing with Bean feeding him speed and rates of descent, etc.

The third crew was Apollo 14's Alan Shepard, Edgar Mitchell and Stuart Roosa. Roosa was the CMP. Shepard flew the landing with Mitchell acting as his source of landing information.