Dr. Morton Kepstone

Bio
Dr. Morton Kepstone is the author of the book, "How to Tell a Mushroom from a Toadstool," which was published right after his death by unknown (but theoretical) means. His book turns up in the Professor's collection, and is used by Gilligan to gather mushrooms on the Island.

Trivia

 * "How to Tell a Mushroom from a Toadstool" is one of several books in The Castaways Library.

Episode(s)

 * The Postman Cometh