File Paraguayan president's visit, 1943 Box 33 In: Donald S. Leonard Papers, 1925-1966 » Audio-Visual Materials » Photographs » Civil Defense, 1941-1952
File Sault Ste. Marie mock nuclear attack exercise, 1951 Box 33 In: Donald S. Leonard Papers, 1925-1966 » Audio-Visual Materials » Photographs » Civil Defense, 1941-1952
File Miscellaneous Box 33 In: Donald S. Leonard Papers, 1925-1966 » Audio-Visual Materials » Photographs » Civil Defense, 1941-1952
File Michigan State Police, 1929-1952 In: Donald S. Leonard Papers, 1925-1966 » Audio-Visual Materials » Photographs
File Donald S. Leonard alone Box 33 In: Donald S. Leonard Papers, 1925-1966 » Audio-Visual Materials » Photographs » Michigan State Police, 1929-1952
File DSL with others Box 33 In: Donald S. Leonard Papers, 1925-1966 » Audio-Visual Materials » Photographs » Michigan State Police, 1929-1952
File Airplane crash, Lansing, 1949 Box 33 In: Donald S. Leonard Papers, 1925-1966 » Audio-Visual Materials » Photographs » Michigan State Police, 1929-1952
File Buildings Box 33 In: Donald S. Leonard Papers, 1925-1966 » Audio-Visual Materials » Photographs » Michigan State Police, 1929-1952
File Exhibits Box 33 In: Donald S. Leonard Papers, 1925-1966 » Audio-Visual Materials » Photographs » Michigan State Police, 1929-1952
File File room Box 33 In: Donald S. Leonard Papers, 1925-1966 » Audio-Visual Materials » Photographs » Michigan State Police, 1929-1952