In 1962, a young designer named Albert Hadley introduced himself to Parish. His first assignment with Parish was the breakfast room of the Kennedy White House. “I only did the curtains,” he said in 1999. Hadley became a full partner two years later. Parish and would continue to work together until Parish's death in 1994. The firm was a training ground for dozens of designers now acclaimed in their own right including Bunny Williams and Thom Filicia. According to Harold Simmons, "Parish-Hadley influenced a whole generation of decorators and many of the top New York decorators went through the firm at some point in their careers."