Elaine Lustig Cohen was a painter and graphic designer responsible for the signage on the Seagram's Building, among many other clients. In the late 1960s, the FBI maintained a short file on her—including monitoring her international travel—and her husband, Arthur A. Cohen. The file includes some sensitive personal details about their marriage.
New York Times obit: Elaine Lustig Cohen, Designer Who Left Her Mark Everywhere, Dies at 89