...it helps to know the history of the Cripple footprint. Over a thousand tracks were discovered in November and December 1969, near Bossburg, Washington. One pair of footprints were cast. This set, including the right "crippled" foot, is the basis for Krantz's statement that it would be impossible to hoax. Many Bigfoot researchers are not so sure. At the heart of the story is Ivan Marx. Marx participated in the Tom Slick Bigfoot expedition in northern California (1958-1962).
After termination of the search Marx moved to Bossburg. He was living there when the tracks began to appear. Although he did not discover any tracks, he was closely associated with several discoveries. Dahinden maintains that the tracks are worthy of consideration. In Sasquatch (Hunter and Dahinden 1975: 156), he says he was suspicious of the circumstances. "Why," he writes, "did the tracks happen to be just there, where (I) would be sure to go every day, where (I) checked all the time. Suspicions increased when no additional legitimate evidence surfaced despite the obvious repeat presence of the creature. After the Bossburg incident, Marx produced a film of what he said was a large Sasquatch creature. The first film was followed by several more, and his credibility suffered.
The Marx films have failed to gain any significant acceptance within the Bigfoot community. Even Krantz rejects the Marx films. Writing to Dahinden in May 1975, Krantz (1975) says: "You are right about my falling for the Marx film, for a while anyway."