Folder Lists: Ralph Arnold Lewin
- Papers 1921 - 2009, Collection 2007-26
- Papers 1931 - 1967, Collection 2004-39
- Papers 1938 - 2005, Collection 2005-31
- Papers 1941 - 1980, Collection 90-01
- Papers 1942 - 2005, Collection 2007-09
- Papers 1952 - 2004, Collection 2008-15
- Papers 1953 - 2008, Collection 2008-42
- Papers 1960 - 2009, Collection 2008-46
- Papers 1958 - 1997, Collection 2002-01
- Papers 1967 - 1982, Collection 91-14
- Papers 1975 - 2001, Collection 2003-23
- Papers 1981- 1999, Collection 2003-27
- Papers 2001- 2005, Collection 2008-12
