The Institute for Baseball Studies is the first humanities-based research center of its kind associated with a college or university in the United States. The Institute is a collaborative effort of Whittier College administrators and faculty members, and the Baseball Reliquary.

The Japanese American National Museum holds a wide variety of materials documenting the Japanese American experience from a Japanese American perspective. Built around broad historical eras and themes of Japanese American experience, the holdings are used to fulfill the museum’s mission "to promote understanding and appreciation of America's ethnic and cultural diversity by sharing the Japanese…

The June L. Mazer Lesbian Collection, formerly the West Coast Lesbian Collections, was founded in Oakland, California, in 1981. Six years later it was moved to Los Angeles by Connexxus Women's Center/Centro de Mujeres, and it acquired its present name in 1987 after the death of June L. Mazer, a community activist and an invaluable supporter of the collection.