Professor Emeritus of Mathematics, The University of Denver.
Taught undergraduate credit courses on Sherlock Holmes and Other Victorian Detectives from 1973 to 1998.
Still teaches non-credit courses on Mr. Holmes to senior citizens who he says are among the best students he has ever encountered.
Published in: The Baker Street Journal, The Sherlock Holmes Journal, and Baker Street West 1.
Author of two pastiches, two study guides, three booklets, and a chronology of the great detective.
Has published a Sherlock Holmes calendar yearly, the last year will be 2004.
Currently working on a cookbook that will contain recipes for two persons, Sherlock Holmes and Dr. Watson, and that will also include nutritional content for each recipe.
At times uses Ian Malcolm Earlson as a pseudonym (N.B. The logic behind this choice of pseudonym is left as an exercise in Holmesian logic for the read).