Clyde B. Clason
Theocritus Lucius Westborough, an elderly scholar of the Roman Empire, in Chicago, Illinois, and Los Angeles, California:

The Fifth Tumbler (1936)

The Death Angel (1936)

Blind Drifts (1937)

The Purple Parrot (1937)

The Man from Tibet (1938)

The Whispering Ear (1938)

Murder Gone Minoan (1939)
APA: Clue to the Labyrinth (1939)

Dragon’s Cave (1939)

Poison Jasmine (1940)

Green Shiver (1941)