By Terri Schexnayder For millions of people living in America, the death of a child is a tragedy that silently unites many, even presidents. President Joseph R. Biden Jr. has cited his son’s death, Beau, as motivation to run for president and has shared his reflections and experiences on grief and loss in many eulogies. Former President George H.W. Bush advanced global health measures citing the death of his three-year-old daughter, Pauline Robinson (“Robin”), who died of leukemia in th...