[1] He was born Pierre Denis de Lagarde Boal on September 29, 1895, at Thonon-les-Bains, Haute-Savoie, France, to Theodore Davis Boal and his wife, Mathilde Marie Dolorès Denis de Lagarde.
[2] Their children included Mimi Lee, who served as the First Lady of Maryland from 1977 to 1979.
Before his appointment as ambassador, he served tours as diplomatic secretary of counselor of embassy in Mexico City, Belgrade, Warsaw, Bern, Lima, and Ottawa.
[3] He died at 3 p.m. of a "cerebral vascular accident" on May 24, 1966, at the American hospital on 63 Victor Hugo Boulevard, Neuilly-sur-Seine, France.
After his death, his body was released to his wife Jeanne and transported from the Paris Orly Airport to Kennedy International Airport on its way to Boalsburg, Pennsylvania, for interment.