The collection consists of the original anti-slavery pamphlets assembled by the American abolitionist, James G. Birney. The collection spans the years 1784-1909. It contains only the items duplicated by those that were processed as books with individual call numbers and items that were deemed too fragile. In the case of fragility, photocopies were made as use copies.

J. Louis Kuethe (born 1905) served as assistant librarian at Johns Hopkins University for 43 years. The collection consists of articles published by Kuethe in Baltimore newspapers, correspondence related to his writings, and Kuethe's notes for a survey of place names of Maryland all dating from 1939-1968.

This collection consists of a Journal of a tour through the middle and southern United States from December 7, 1822 to June 25, 1823. The journal is an account of the first large-scale missionary effort to convert American Jews to Christianity.

James Ryder Randall (1839-1908) was a native of Maryland and penned the poem, Maryland, My Maryland! which was adopted as the state song in 1939. The collection includes autograph transcriptions of a letter to Charles F. Gunther of Chicago and the accompanying aforementioned poem.

James Roberts Gilmore (1822-1903) was an American author who often used the pseudonym "Edmund Kirke." This collection includes letters collected by Gilmore from literary, political, and popular individuals of the 19th century. The letters span the years 1820 to 1903.

James Truslow Adams (1878-1949) was a historian and writer. The typescript letter which forms this collection is dated September 7, 1933 and addresses Mrs. Helen G. Williams.

Jean Evans Walter was born in Baltimore in 1920. Walter made a career working in insurance sales and adjustments, yet he attempted to become politically involved in 1970 by running for a seat on the Prince George’s County Council. This collection primarily consists of Walter's works of fiction, with materials concentrated into two time periods: from 1937-1957, and 1970-1971.

Jesse Slingluff was a Baltimore attorney and an alumnus of Johns Hopkins University. The collection consists of one bound notebook containing a series of lecture notes on German literature. The lectures are not dated, but appear to correspond to a German literature course offered by the German Department at Hopkins during the 1920s.

Johannes Matter (1882-1970) was professor of political science at Johns Hopkins University. Collection consists of correspondence and reports ranging in date from 1859 to 1933 from the diplomatic papers of Ulysses Grant-Smith and Henry Anthon, U.S. Consular officers.

John Calvin French was professor of English and librarian at The Johns Hopkins University and author of "A History of the University founded by Johns Hopkins." The collection consists largely of his research and manuscript notes dealing with the founding and later development of the University dating from 1928-1957.

John Charles Geyer was as a teacher, writer, and consultant on environmental matters born in 1906. This collection consists largely of writings, subject files relating to environment consulting and teaching at Johns Hopkins University, and some personal items, spanning 1952-1980.

The collection consists of printed articles by John Dewey and reprints from education journals discussing his philosophy of education. Also included are clippings, centenary celebration items, and two photographs of Dewey.

This collection contains lectures, speeches and writings; reprints; book manuscripts; and the conference papers of John G. A. Pocock, a historian of political thought and professor emeritus at Johns Hopkins University. His papers spans the years of 1962 to 2017, with the majority of the materials dating from Pocock's time at Hopkins. This holding notably includes his handwritten manuscripts of Barbarism and Religion (1999).

John Higham was a historian and professor at Johns Hopkins University with a principal field of interest in American social and intellectual history of the nineteenth and twentieth centuries. The collection consists of holographic course notes, outlines, examination booklets, and other assignments completed during his undergraduate years at The Johns Hopkins University, 1937-1939, as well as material relating to Dr. Higham's teaching and writing career.

John Holladay Latané was a history professor at Johns Hopkins University born in Staunton, Virginia on April 1, 1869. The collection consists of writings, lectures and speeches, correspondence, research material, and material on the invention of the McCormick Reaper spanning 1913-1930.

The collection of physician and Baptist minister, John Lambert Richmond, consists of one small holographic journal describing his travels in southwest England, September, October 1830.

John Martin Vincent (1857-1939) years was a Professor of European History at Johns Hopkins University. This collection consists of correspondence, scrapbooks, subject files, and personal materials ranging in date from 1881 to 1925. The bulk of the material is correspondence dating from 1900-1910.

John Pendleton Kennedy (1795-1870) was born in Baltimore, Maryland. He was a politician (elected to the U.S. House of Representatives in 1838) and writer with strong ties to the South. This collection includes a public letter which elucidates Kennedy's dialogue as an apologist for slavery on the one hand, and the views of famed anti-slavery activist, Lewis Tappan, on the other. The correspondence was written on March 5, 1850.

John Thomas Scharf (1843–1898) was a United States historian, author, and Confederate soldier. The collection consists of his original documents as well as those of other historians, including Henry B. Dawson and Thompson Westcott. The materials span in date from 1750-1947.

John Weatherburn was born in the village of Kenton, England, April 23, 1750 and immigrated to the United States in 1772. The collection consists of a diary, letterbook, daybook, and two journals of Baltimore merchant, John Weatherburn ranging from 1766-1816.

Collection consists largely of correspondence and professional papers of American banker and diplomat, John Work Garrett. Included are items from Garrett's foreign service in Venezuela, Argentina, the Netherlands, and Italy. Other materials relate to political events, locally and internationally (1920-1940). Also in the collection is extensive personal correspondence of Garrett and his wife, Alice, which describes personal friendships, travels, entertainments, and cultural interests.

The Johns Hopkins University collection of vintage games and toys is an artificially assembled collection of materials purchased and selected by the curators of Special Collections. It spans from 1796 to 2020.

The Johns Hopkins University collection of slavery records is an artificially assembed collection by the curators of Special collections, with materials that span from the 18th to the 19th century and primarily document the enslavement of African Americans in the United States.