This is a scrapbook compiled by Alphonse Case (A.C.) “Phonney” Martin concerning the invention of the curve ball. This scrapbook consists of typed manuscript pages, clippings, correspondence, and handwritten notes, dated between 1845 and 1933.

This is a collection of individual files of Negro League players, executives and others associated with the Negro Leagues. Also included is correspondence, articles, newspaper clippings, programs, and statistics.

A collection of 25 scrapbooks relating to the career of Babe Ruth between 1921 and 1935. These were created by his manager, Christy Walsh.

A collection of research files relating to women in baseball created and compiled by Barbara Gregorich over a span of years.

A collection of research files, scorecards, micro-cassettes, and photographs created by Bill Madden over the span of his career.

A collection of research material created and compiled by Brian "Chip" Martin in the writing of his book on Pud Galvin.

A collection of poems, newspaper articles, and correspondence relating to the poem "Casey at the Bat", 1904 to 2000.

The collection is comprised of press kits, newspaper and magazine clippings, detailed statistics, post-season media guides, programs, and correspondence.

A collection of newspaper clippings, correspondence, statistics, research notes, and photographs related to the Ferrell family, dated 1911-2005. This was created and/or compiled by Dick Thompson for his book on the Ferrell brothers.

This collection contains the papers of Edward Grant "Ed" Barrow, who held numerous positions in professional baseball in the first two decades of the 20th century before entering the front office for the New York Yankees in 1921. This collection contains a variety of Barrow's personal papers from his time as Yankees president and continue on to the time of his death in 1953. These papers consist of correspondence, legal documents, telegrams, clippings, photos, and other ephemera.