Jason,
Thanks. You are so right: necessity being the mother of invention.
While few Plummer courses would rate highly in the Doak scale, I would be a happy member at a number of them. For whatever they lack in sophistication and pizzaz, Plummer courses are stimulating and foster improved play.
Tommy,
To the best of my knowledge, there is not a Plummer descendant in golf design. Perhaps you met Steve Plumer who is based in the DFW area and designed two courses near Fort Worth, Hidden Creek and Waterchase. I may be wrong, but I think that he may have come out of Jeff Brauer's shop.
Ran,
For clarification, Jeff's article was an email response to my request for his thoughts on Plummer's work he had come across in his design and renovation assignments. It was probably written to be incorporated in the main article, but I thought the information was better conveyed in his voice and its entirety.