The Alumni Association of Princeton University organized the conference ¡Adelante Tigres! Celebrating Latino Alumni at Princeton University in the spring of 2017. The conference brought more than 750 alumni and guests to campus to reflect on and engage with not only the memories of Latino alumni but also the current experiences of Latino students at Princeton. The ¡Adelante Tigres! Collection consists of photographs and other records that Princeton alumni created and maintained during their time as Princeton students. Documented in the collection are a range of student activities, including cultural performances (dance and music), activism, reunions, and graduation. These materials were collected as part of the conference of the same name organized by the Alumni Association.

Alexander Leitch was the Secretary of Princeton University from 1936 to 1966. The collection consists of extensive notes taken by Alexander Leitch as background for the "Football" entry of his encyclopedia A Princeton Companion

The Alumni Association of Nassau Hall, Princeton's first official organization of alumni, was founded on commencement day 1826. The collection consists primarily of administrative materials such as correspondence, meeting minutes, notebooks and reports belonging to both national and regional associations and their committees, most from the first half of the 20th century. Also contains newsletters, alumni directories, scrapbooks, reunion-related ephemera, photographs, and materials documenting reunions and alumni organization activities from the late 19th century forward.

Arthur Mendel was a prominent music scholar in the twentieth century and a professor at Princeton University. The collection contains correspondence with professional colleagues, course notes, musical notes, scrapbooks, and clippings. There is also additional unprocessed material from Mendel's time at Princeton.

This collection consists mostly of pamphlets and a few serial titles related to various aspects of the arts and culture in Cuba.

Among Princeton University traditions, the Beer Jacket worn by graduating seniors stands as one of the most unique and most enduring. The collection consists of materials documenting the evolution of beer jacket designs throughout the greater part of the 20th century.

The Bureau of Student Placement was an administrative office at Princeton University that operated roughly from 1945 to 1953 and acted as a liaison between the various armed services and the Princeton University community. The records consist of army, navy, and marine corps plans for colleges, card files containing information about students in the service, and the correspondence of director Gordon G. Sikes which includes letters to and from servicemen, military officials, and other University administrators.

Christian Bernard Shea was a member of the Princeton Class of 1916 and an avid supporter of Princeton athletics. The collection consists of Princeton University athletics statistics and newspaper clippings compiled by C. Bernard Shea between approximately 1901 and 1960.

This collection contains pamphlets, flyers, working papers, institutional reports, and periodicals that address the conditions of children and youth in Mexico and Central America between 1984 and 2008.

Included as part of the final gothic design of Princeton's Graduate School was a 173-foot tower, a national memorial to former U.S. President Grover Cleveland who was also chairman of the trustees' graduate school committee. The collection consists of 11 log books signed by visitors to the Cleveland Memorial Tower.