James Ryan died in 1964.James J. Ryan. New York Times, September 23, 1964 After Darragh Park's death in 1973,Darrach A. Park Jr. New York Times, November 2, 1973, Leonard J. Collins succeeded as Chairman of the firm.Leonard J. Collins. New York Times, March 11, 1999 Collins decided to close and liquidate Park, Ryan in 1979 in response to declines in the bond market caused by the Federal Reserve's tighter monetary policy.Park Ryan to Close. New York Times, October 24, 1979
