The Ominum Gatherum Collection is a collection of mostly single item manuscript materials; developed by the Manuscript Division of the Moorland-Spingam Research Center. A compendium of materials ranging from: letters written by John Brown and Marcus Garvey; articles and speeches by Francis Grimke and W. E. B. Du Bois; scrapbooks by Rev. John Mifflin Brown and Rev. William Henry Scott; clippings on Civil War activities; poetry by Langston Hughes and Countee Cullen; proofs and manuscripts of John Hope Franklin, Charles Wesley and others. There are also artifacts, broadsides, playbills, programs and numerous slave documents, including indentures, deeds of emancipation, bills of sale, and receipts dating to the 18th century.