LSU Scotts Black is not the same as Black Jack, no question about that. LSU Scotts Black may not even be a LSU Scotts Black as there are two different ones, an earlier one and a later one. I am not clear on why, but the later one may re-emerge with a different name as there were negotiations between LSU and a large unknown company on the rights to the tree. This was discussed by Dr. Johnson at the LAST(?) LSU Fig Field Day.
Our South Louisiana delegation members may have additional information.