The clipping below is from a catalog for prospective students of the Chouinard Art Institute, School of Motion Picture Arts. Although undated, I believe this to be from the late 1930s, probably 1937 or 1938.
The School of Motion Picture Arts was established in September 1936 and headed by Harold Miles, a long-time educator, an art director for live-action films and also a credited art director on Walt Disney's Snow White. The school taught in the fields of set design, drafting, costume design, advertising art, and animation. The head instructor in Animation was Eugene Fleury, who also was an instructor at the Disney Studio.
Within the curriculum for Animation was a class in Caricature, taught by Joe Grant. The clipping contains a brief description, with an example drawing and a photo of a Grant in a dashing pose with a pipe and a sculpted caricature of Oliver Hardy.
When I have some time in the future I will post other excerpts and eventually the entire catalog.