Historical Video Productions

I just finished watching a video of the initial restoration by John Bush and his crew of engine 463. The video was produced in the mid-1990s by Historical Video Productions and narrated by Carolyn Clark. She also wrote the script for this video production. It was very well done. She seemed to know a lot about the Cumbres & Toltec Scenic Railroad. I have another video entitled "Last Train to Cumbres" that she also narrated. It too is very well done. Does anyone know if Historical Video Productions is still in business and if Carolyn Clark is still associated with videos and other materials relating to the C&TS or the Durango & Silverton? She certainly seemed to know a lot about the narrow gauge railroads in the Colorado Rockies.