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 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.

A collection of game accounts, rosters, standings, and statistics relating to the New England League as researched and compiled by Dick Thompson.

A collection of correspondence, articles, research notes, and clippings created and compiled by Dick Thompson, primarily related to baseball in New England.

A collection of research material created and compiled by Debra Shattuck in the writing of her book "Bloomer Girls: Women Baseball Pioneers", published in 2017, and her 1988 thesis "Playing a Man's Game: women and baseball in the US, 1866-1954", May 1988.

A collection of research notes, correspondence, photocopies of photographs, and newspaper clippings created and/or compiled by Dr. Lawrence Hogan. These papers were used in the writing of his book titled "The Forgotten History of African American Baseball", published in 2014.

A collection of research files created and/or compiled by Dr. Lawrence Hogan in the writing of his book "So Many Seasons in the Sun". Also included are interviews on 30 cassettes, 2 DVDs, 4 mini-audiodiscs, 7 compact discs, and 1 VHS.

A collection of articles, interview transcripts, audiocassettes, research notes, rosters, correspondence, and programs relating to baseball in Cuba, Venezuela and Andres Reiner, and Mexico. This collection was created and/or compiled by Dr. Milton H. Jamail, and is dated between 1912 and 2020.