He was an American modernist painter, etcher, illustrator, lithographer, muralist, printmaker and art teacher.

After the end of World War I, Lucile and Arnold Blanch moved to New York City and enrolled at the Art Students League of New York, studying with John Sloan, Robert Henri, Kenneth Hayes Miller and Boardman Robinson.

Eventually by 1923 they settled in Woodstock, New York, which was then beginning to become an important art colony for young artists.

[4] In 1939, Blanch remarried and for many years he lived in Woodstock, New York with his second wife Doris Lee, also an artist.

Blanch taught at the Art Students League's branch in Woodstock for several decades from the 1930s until his death in the late 1960s.