[3] In 1940, he graduated from University of California, Berkeley with a bachelor's degree in economics.
[3] After the war, he went to work for the family company, Levi Strauss & Co, with his older brother, Walter A. Haas Jr.
[1] Due to the fact that his son Michael was developmentally disabled, Haas was a strong supporter of San Francisco Aid for Retarded Children.
[7] His son Peter worked for the Levi Strauss Company in various capacities[8] and was married to Joanne Christensen.
A memorial service was held at Temple Emanu-El in San Francisco.