Collection documenting the life and music career of the nineteenth-century Irish-American band leader, conductor, and cornetist P.S. Gilmore. It also highlights the activities of the Patrick S. Gilmore Society, founded by Michael Cummings in Boston in 1968 or 1969. Materials assembled by Michael Cummings include correspondence, concert programs, Gilmore's cornet, photographs, lithographs, audio and visual recordings, and newspaper and magazine articles. Much of the material pertains to two large-scale musical events arranged by Gilmore—the National Peace Jubilee of 1869 and the World's Peace Jubilee of 1872—both held in Boston, Massachusetts. Materials on Gilmore and the Peace Jubilees are a mixture of original nineteenth-century items and reproductions created during Cummings's research.