Very, very sad news.
I first "met" Jim via his quarterly VHS tape OGR "Backshop" series a long time ago in the very early '90s. Before the Internet, the information in his series was, simply, gold.
Each distribution of his VHS "Backshop" arrived Spring-Summer-Fall-Winter for several years ... and I wasted no time in getting that VCR fired up, my notebook and pencil in hand watching Jim display the breadth and depth of his knowledge of toy train repair and improvement.
I met Jim sometime not long after at one of the toy train club's conventions in the '90s -- not to mention many times at York for a quick "hello".
A real loss of a good guy and a trove of toy-train information.