As a touch of Hollywood inside humor, Jimmy was given one line in Invaders from Mars (1986), the remake of the 1953 sci-fi classic--Invaders from Mars (1953)--in which he starred. As he approaches the hill where the flying saucer has allegedly landed, he says, "I haven't been here in 40 years". As the cable channel American Movie Classics noted, that was fairly close. It had actually been 33 years.
Jimmy has 3 children (2 sons and a stepdaughter), 8 grandchildren, and 2 great-grandchildren.
Interviewed in "Growing Up on the Set: Interviews with 39 Former Child Actors of Classic Film and Television" by Tom Goldrup and Jim Goldrup (McFarland, 2002).
Williamsburg, VA: Attended the Western Film Festival [March 2013]
He is the only actor to appear in both Invaders from Mars (1953) and its remake Invaders from Mars (1986).