It seems from my gleanings from the wayside (not a Ross reference) that Ross rarely hesitated to provide paid consulting services in instances where clients didn't have the money for proper design work. One instance came during my chat with the GM at Kebo Valley, who brushed off any claim that Ross was a designer there; rather, during leaner times, he provided a few notes on agronomy and suggested moving one green. It doesn't seem such dealings are as publicized as Tillinghast's PGA tour.
I wonder if these minor inputs resulted in so many alleged Ross "designs" popping up, the product of exaggerating such visits.