"Clark, General Mark Wayne (1896–1984)". HistoryLink.org. Seattle, Washington. Retrieved 2012-02-10. ..grew up in Highland Park, a Chicago suburb near Fort Sheridan ...
jstor.org
O'Brian, William (January 1959). "General Clark's Nomination as Ambassador to the Vatican: American Reaction". The Catholic Historical Review. 44 (4): 421–439. JSTOR25016458.