Box Jumpers and Magicians

So for the first time tonight I heard the term “box jumper” This was used by a magician in a derogatory manner. I assume it implies something … Nonetheless, I have recently had a positive experience with who I presume would be considered a “box jumper” … with Harry Blackstone (Sr). In his day, his stature as a magician was such that the (Senior) was never actually required. Here’s a link to her page … Perhaps the last living member of Blackstone’s show: http://elusivemoth.com/