File Correspondence and memos Box 11 In: Donald S. Leonard Papers, 1925-1966 » Civil Defense » Post-World War II, 1947-1952 » Michigan Civil Defense » Mock Nuclear Attack Exercises, 1951 » Sault Ste. Marie
File Reports and observations Box 11 In: Donald S. Leonard Papers, 1925-1966 » Civil Defense » Post-World War II, 1947-1952 » Michigan Civil Defense » Mock Nuclear Attack Exercises, 1951 » Sault Ste. Marie
File Detroit In: Donald S. Leonard Papers, 1925-1966 » Civil Defense » Post-World War II, 1947-1952 » Michigan Civil Defense » Mock Nuclear Attack Exercises, 1951
File Agendas and remarks Box 11 In: Donald S. Leonard Papers, 1925-1966 » Civil Defense » Post-World War II, 1947-1952 » Michigan Civil Defense » Mock Nuclear Attack Exercises, 1951 » Detroit
File State Police reports Box 11 In: Donald S. Leonard Papers, 1925-1966 » Civil Defense » Post-World War II, 1947-1952 » Michigan Civil Defense » Mock Nuclear Attack Exercises, 1951 » Detroit
File City department reports 6 folders Box 11 In: Donald S. Leonard Papers, 1925-1966 » Civil Defense » Post-World War II, 1947-1952 » Michigan Civil Defense » Mock Nuclear Attack Exercises, 1951 » Detroit
File Organization Box 11 In: Donald S. Leonard Papers, 1925-1966 » Civil Defense » Post-World War II, 1947-1952 » Michigan Civil Defense » Ground Observer Corps, 1949-1952
File Conference on Expansion of Aircraft Warning System 2 folders Box 11 In: Donald S. Leonard Papers, 1925-1966 » Civil Defense » Post-World War II, 1947-1952 » Michigan Civil Defense » Ground Observer Corps, 1949-1952
File Correspondence Box 11 In: Donald S. Leonard Papers, 1925-1966 » Civil Defense » Post-World War II, 1947-1952 » Michigan Civil Defense » Ground Observer Corps, 1949-1952
File Notes Box 11 In: Donald S. Leonard Papers, 1925-1966 » Civil Defense » Post-World War II, 1947-1952 » Michigan Civil Defense » Ground Observer Corps, 1949-1952