The youngest son of Monica Macklin, the stepson of Richard Macklin, and the younger brother of Edward Corcoran. A four-year-old boy who, before his death, often shows up to school with a bruised body, due to Richard’s abuse. Dorsey is bludgeoned to death by his stepfather in May 1957. Richard takes him to Derry Home Hospital and says that Dorsey fractured his skull playing on a stepladder in the garage and falling. He remains unconscious for three days before dying.