On August 22, 1972, John Wojtowicz, Robert Westenberg, and Donald Matterson attempted to rob a Chase Manhattan Bank branch in Brooklyn (N.Y.). They held nine bank employees hostage and demanded money. The money was to enable Wojtowicz's lover Ernest Aron to have a sex change operation. Aron did not know of the planned robbery. Wojtowicz was sentenced to 20 years at the Federal Penitentiary in Lewisburg, Pa. Matterson was killed by FBI agents. Westenberg served 19 months. Aron underwent a series of operations and changed her name to Liz Eden. The movie "Dog Day Afternoon," loosely based on the robbery, was released in 1975.
From the description of Liz Eden papers, 1973-1986, 1974 (bulk). (New York State Historical Documents). WorldCat record id: 155407583