Which US astronauts that landed on the moon were Scouts?
Since NASA's formation in 1958, 181 of the 320 pilots and scientists selected by NASA were Scouts.

Of the 24 people to travel to the Moon on the Apollo missions, 20 were Scouts, including 11 of the 12 Moonwalkers.

All three of the Apollo 13 astronauts, who had to abort their mission and return to Earth were also Scouts.