Two additional articles about George Mathews by Wiley Clapp have been brought to our attention.

Txshooter found one featuring a 2 inch M&P in the 2000 edition of Custom Combat Handguns.

John Taffin pointed out a chapter in the Digest book Handguns '89.

That one has much information about the why and the how of the guns that were intended as plain clothes and off-duty guns for LA cops in the post-WWII era when new handguns were not available.

So, Wiley Clapp has filled in the blanks about Mathews and his guns. The question of where they've all gone remains.

I'd still like to know - who was Walter Rickell?