Did not know he also was a singer and was part of the original 24 Mouseketeers before they reduced the number of kids from 24 to 12.
"Crawford was nominated for an Emmy Award as Best Supporting Actor[7] at age 13. He received the nomination for his role as Mark McCain (the son of Lucas McCain, played by Chuck Connors) in the ABC series[7]The Rifleman. Crawford also played a young boy named Clay Holden, who befriends Connors in a 1965 episode of “Branded”. Throughout The Rifleman's five seasons, a remarkable on-screen chemistry existed between Connors and Crawford in the depiction of their father-son relationship. They were still close friends when Connors died on November 10, 1992, and Crawford gave a eulogy at Connors' memorial service."
My 16 y/o son, Abel, got an autographed photo of Crawford 3 years ago for his birthday. Mrs. Nalt had written to him asking for it because loved watching The Rifleman every Saturday morning. RIP Johnny.