Curtis O. Baer was born in Strasbourg in 1898. He studied at the University of Freiburg, and in 1921 entered the family business in Frankfurt. In 1934 he married Kathi Mayer. They emigrated to the United States in 1940.
Zafran, Eric. Master Drawings from Titian to Picasso: The Curtis O. Baer Collection. Atlanta, The High Museum of Art, 1985 and tour.