Graduate of Pratt Institute General Art Course, 1919; Student at the Art Student's League of New York; studied painting under Henry B. Snell.
He taught illustration, figure and poster work since March 5, 1923 in New York City High Schools. Schnelle exhibited at the New York Water Color Club, American Water Color Society, National Art's Club, Albany Institute of History and Art, and more.
He made his living being a (commercial) illustrator. For example, he drew Lincoln's portrait for The Lincoln Savings Bank of Brooklyn (Incorporated 1866).
Schnelle illustrated many book covers, vacation brochures, greeting cards, posters, newspapers, lots of magazine stories, mostly brochures for August Becker (Effective Printing and Direct Advertising Company).
He later moved from New York City (113 East 34 St. at Park Avenue) to the country, into a big farm house in Rensselaerville, near Albany (Upstate New York), where in the summer he was teaching painting outdoors, to interested people that came from the city.
See the following web page for a few examples of his work: