From the Web Site:
The digital collections of the Library of Congress contain a wide variety of material associated with W. E. B. Du Bois, including manuscripts, photographs, and books. This guide compiles links to digital materials related to W. E .B. Du Bois that are available throughout the Library of Congress Web site. In addition, it provides links to external Web sites focusing on Du Bois and a bibliography containing selected works for both general and younger readers.
Source: Library of Congress