On September 28, 1981, my father went to take his morning walk in Valley Green, a nature reserve in Philadelphia’s Wissahickon Park, where cars were prohibited. The area was a favorite among walkers and runners, and my father, who was 76, was known to the regulars there. The walk in Valley Green had become a staple of his health regimen since his recovery from surgery for an abdominal aortic aneurysm five years earlier. He had traveled to Kansas City for this surgery, because one of the surgeons there was renowned.
So, intensely thoughtful.