Lawrence tipped me off to this: Chip McCormick, who I think can fairly be described as the father of the modern 1911.
Shooting Illustrated has a good article:
Before CMC (Chip McCormick Custom), there was no such thing as the now ubiquitous drop-in AR-15 trigger. Gunsmiths would put together a trigger with parts, often from a kit. McCormick created a single-unit trigger that installs in minutes; literally a “drop in.” Of course easy installation was not good enough for McCormick, he made it crisp, clean, with no creep….Match grade. Now dozens of imitators crowd the market, the market created by Chip McCormick.
Before Kimber, the 1911 had to be fitted from oversize parts. If you saw one in the gun store, it was usually a basic government model that the owner would have to customize. McCormick conceived of the “spec” 1911 with all parts being within specific tolerances so the gun could be assembled, instead of fitted. McCormick approached several companies, but they turned him away. Kimber’s Leslie Edelman saw the potential and quickly struck a deal for Chip to create a production gun. Unlike anything else on the market, it was fully accessorized with beavertail grip safety, extended slide release and ambidextrous thumb safeties. Not only was the Kimber handgun line born, but so was a new way of building the 1911. Now the production 1911 is the industry standard, as are fully accessorized guns.
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I never had the pleasure of meeting Mr. McCormick (though I swear by his 1911 magazines) but great and good friend of the blog (and official firearms trainer of WCD) Karl shot with him, and has a post up on Facebook: