(written from a Production point of view)
Russell "Russ" Simpson (died 28 October 2009) was a model maker employed in 1978 by Magicam, Inc. and has contributed to the production of Star Trek: The Motion Picture. Partaking in the construction of the various studio models, such as the work bee, the company was tasked to build, his most signature contribution was the build of the new Drydock model, after the Star Trek: Phase II version was discarded. Simpson was appointed lead modeler on its construction. 
Having only one other recorded motion picture credit to his name, as "miniature window manufacturer: miniature effects" for The Hudsucker Proxy (1994), Simpson left the motion picture industry in the early 1990s. A train enthusiast, he started his own business around 1993, "Simpson Products Company", that was located in Placerville, California, designing and manufacturing scaled train miniatures.  Russ Simpson ran his company until his death.
Russell Simpson passed away in 2009, due to heart failure.