The American rivals of Sherlock Holmes by Hugh Greene, Hugh C. Weir, Rodriguez Ottolengui, and 12 others (Penguin crime fiction)

Weir, H. C. Cinderella's slipper.
Ottolengui, R. the nameless man.
Ottolengui, R. The Montezuma emerald.
Flynt, J. and Walton, F. …