Collection
- Cathedral of St. Paul, Construction Letters, 1907-1915 (1427)
- History of Caesarean Section, Dr. Robert Patterson Harris (751)
- Manuel Gallego y Valcarcel Papers (193)
- The De Mey van Streefkerk Papers (123)
- Digitizing Immigrant Letters (102)
- Records of YMCA International Work in the Philippines (97)
- James Henry Stuart Letters (57)
- Fletcher S. Brockman and Family Papers (41)
- Resort Discrimination Records (41)
- Venice Online (40)
- Documenting Jesuit Activity in Mexico and South America (35)
- Arthur Kleiner Collection of Silent Movie Music (25)
- John R. Mott Papers (25)
- Records of YMCA Work in England and the United Kingdom (20)
- Sherlock Holmes Collections (19)
- Alan Rich Papers (11)
- John Smith Journals and Papers, 1758-1794 (11)
- YMCA Boys and Youth Work Records (10)
- Carver Land Grant Papers (9)
- Records of YMCA Work with Women, Girls, and Families (9)
