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 correspondence, telegrams, and newspaper clippings relating to African American baseball players integration into Major League Baseball. This collection is dated from 1937 to 1980.

The collection documents the pictorial history of baseball's Negro Leagues before the integration of baseball. It primarily includes team, group, and general action photographs. Of particular interest is the large colleciton of photographic materials from the Homestead Grays.