::Bearing in mind that we're talking about material that's 30 and 40 years old: 
 ::First, I dug out the 9/68 issue and found that my earlier quote wasn't quite right. Here is Moyse's comment, accurate as to both wording and formatting: "I can't imagine why anyone would want to bid two diamonds (an odious, meaningless, petty little bid if I ever saw one), and if BWS stops Walsh from using it, he should remember the magazine in his will out of gratitude." 

 ::The original NMF discussion pertained solely to bidding after opener's 1NT rebid. The 7/78 article extended the use of NMF to a subset of 4SF situations, specifically the two sequences 1m - 1H - 1S - 2om. Swanson goes on to provide treatments for opener to use, beginning with clarifying his heart holding. The treatments imply the use of a 1S opening with 5-5 in the blacks  and here you can see how wide a net K-S cast! 40 years later, Dick Walsh must be chuckling in his castle in Switzerland.