Sherlock Holmes items from Guymon collection at California Antiquarian Book Fair.

Ned Guymon with his
first wife, Ernestine, in 1923.

There will be an exhibition featuring Sherlock Holmes materials from Occidental College's Ned Guymon Collection of Mystery and Detective Fiction during the 55th California International Antiquarian Book Fair on February 10–12, 2023, in Pasadena. The collection is composed of some 16,000 items; one item is an 1887 copy of A Study in Scarlet (also includes Guymon's bookplate).

 There also is a Guymon collection at Bowling Green State University.