Edwin Litchfield Turnbull (1872-1927) was a musician who helped create both the Johns Hopkins University and the Baltimore Symphony Orchestra. The collection spans the years 1881-1971 and consists of approximately 400 letters, photographs, loose newspaper clippings, juvenile notebooks, and 13 scrapbooks of newspaper clippings relating to musical, social, or other events.

The collection consists of letters addressed to Congressman Robert Roberts Hitt from various government officials. Many of the letters related to Hitt's work with the Committee on Foreign Affairs.

The papers in the Slack Family Collection have been artificially arranged and consist largely of correspondence collected by Susan Brune Randall and her daughter, Elizabeth Randall, to form an autograph collection spanning 1853-1928. The collection does not include any significant information regarding family or business interests.