He is survived by his wife, Lydia; four children including Christopher Katzenbach, John Katzenbach, Mimi Katzenbach, and Anne De Belleville Katzenbach and six grandchildren including Wolcott and Phoebe.
He was a Vera Institute of Justice Trustee from 1969 to 1983. He was the First Board Chair of the Brooklyn-based Addiction Research and Treatment Center which created in 1969 with the Vera Institute. He delivered it's first Justice Address in 2007.
He served as Senior Vice President and General Counsel of IBM.