At the home of Laurance S. Rockefeller in Pocantico Hills, New York, on May 4, 1963, a month after her divorce—which was granted for reasons of what "The New York Times" called "grievous mental anguish" and her former husband's lawyer called "irreconcilable differences"—she married Gov. Nelson Rockefeller. He had divorced his first wife, Mary Todhunter Clark, on March 16, 1962. Happy and Nelson Rockefeller had two sons: Nelson Rockefeller, Jr. (born 1964) and Mark Rockefeller (born 1967). She previously had worked as a member of his office staff until her resignation in 1961. 