T. Nelson Downs

The Art of Magic

Arthur P. Felsman, Chicago 1921 (I ed. 1909).

Werner Dornfeld

Trix and chatter. A novelty-serio-comic-magicologue 

Arthur P. Felsman, Chicago 1921.

George Shulte

Patter Paragraphs

1921.

Harry Latour

Magical Suggestions

George Johnson, London 1921.

How to entertain a social party

Frank M. Read, New York 1921.

Claude Alexander Conlin

The life and mysteries of the celebrated dr. Q

Nelson Enterprises, Columbus 1946 (I ed. 1921).