Library Codes These codes are used to create unique identifiers for documents. Email Brett if the repository you're looking for isn't listed. Library/Collection Location code American Antiquarian Society Worcester, MA aas Amherst College Amherst, MA amh Boston Public Library Boston, MA bpl Boston University Boston, MA bos Brigham Young University Provo, UT byu Brown University Providence, RI brn Dartmouth College Hanover, NH dar Duke University, Trent Whitman Collection Durham, NC duk Harvard University, Houghton Library Cambridge, MA har Haverford College Haverford, PA hav Huntington Public Library Huntington, NY hpl The Huntington Library, Art Collections, and Botanical Gardens San Marino, CA hun Johns Hopkins University Baltimore, MD jhu Library of Congress Washington, DC loc Manchester University Manchester, UK man Mills College Oakland, CA mil New York Public Library New York, NY nyp Ohio Wesleyan Univeristy Delaware, OH owu Pierpont Morgan Library New York, NY pml Princeton University Princeton, NJ pru Rutgers University New Brunswick, NJ rut Temple University Philadelphia, PA tem University of California, Berkeley, The Bancroft Library Berkeley, CA ucb University of North Carolina Chapel Hill, NC unc University of Pennsylvania Philadelphia, PA upa University of South Carolina Columbia, SC usc University of Texas, Humanities Research Center Austin, TX tex University of Tulsa Tulsa, OK tul University of Virginia, Valentine-Barrett Collection Charlottesville, VA uva Washington University St. Louis, MO wau Walt Whitman House Camden, NJ wwh Yale University New Haven, CT yal