Main content Haynes McMullen Data Cards for American Libraries before 1876, circa 1960-2000 (inclusive) Extent: 11 boxes and 25.21 linear feet Abstract: Consists of librarian Charles Haynes McMullen's data cards (numbering about 10,000) that McMullen compiled for his publication American Libraries before 1876 (2000). Held at: Princeton University Library: Manuscripts Division [Contact Us]