^Dennis Hevesi. Robert Ingersoll, who Served as Envoy to Japan, Dies at 96. New York Times. August 28, 2010 [2015-02-13]. （原始内容存档于2022-06-17）. Robert S. Ingersoll, who took his business acumen as head of one of the country’s largest manufacturing corporations to the diplomatic table as ambassador to Japan and later deputy secretary of state, died on Aug. 22 at his home in Evanston, Ill. He was 96.
