John writes to Lynn Catoe, shortly after they began conferring about her proposed UFO bibliography. Among the interesting bits in this letter are Gordon Evans’s withdrawal from ufology, reports of a John Keel impersonator, a black Cadillac cruising Ivan and Alma Sanderson’s farm, warnings of “odd incidents” Ms. Catoe might experience, and the news that John is now “trying to lead away from the extra-terrestrial thesis and point in new directions.” The “episode with the man in the pickup truck” happened to Ms. Catoe while she was driving to visit the Sandersons in October. A man stopped her and insisted on crawling under her car; when she reached the farm she discovered three lumps of putty on the bottom of her gas tank. John tells the story in more detail in Chapter 17 of The Mothman Prophecies.
ADDENDUM: In the comments, Clarence Carlson expressed curiosity about Gordon Evans. Here’s a link to a transcript of Jim Moseley’s UFO convention in June 1967, which includes a talk by Evans. There’s also a talk by John, and contributions by Gray Barker, Long John Nebel, Ivan Sanderson, and other people who show up in these letters.

