This series covers the correspondence that Mills received between 1880 and 1929. It is arranged alphabetically by the last name of the writer, and contains letters from prominent baseball figures. Others that corresponded with Mills included staff members from the New York Public Library who were interested in his manuscript and book collections.

This series covers the correspondence that Mills received between 1880 and 1929. It is arranged alphabetically by the last name of the writer, and contains letters from prominent baseball figures. Others that corresponded with Mills included staff members from the New York Public Library who were interested in his manuscript and book collections.

This series covers the correspondence that Mills received between 1880 and 1929. It is arranged alphabetically by the last name of the writer, and contains letters from prominent baseball figures. Others that corresponded with Mills included staff members from the New York Public Library who were interested in his manuscript and book collections.

This series covers the correspondence that Mills received between 1880 and 1929. It is arranged alphabetically by the last name of the writer, and contains letters from prominent baseball figures. Others that corresponded with Mills included staff members from the New York Public Library who were interested in his manuscript and book collections.

This series covers the correspondence that Mills received between 1880 and 1929. It is arranged alphabetically by the last name of the writer, and contains letters from prominent baseball figures. Others that corresponded with Mills included staff members from the New York Public Library who were interested in his manuscript and book collections.

This series covers the correspondence that Mills received between 1880 and 1929. It is arranged alphabetically by the last name of the writer, and contains letters from prominent baseball figures. Others that corresponded with Mills included staff members from the New York Public Library who were interested in his manuscript and book collections.

This series covers the correspondence that Mills received between 1880 and 1929. It is arranged alphabetically by the last name of the writer, and contains letters from prominent baseball figures. Others that corresponded with Mills included staff members from the New York Public Library who were interested in his manuscript and book collections.

This series contains material related to official National League functions. It is arranged chronologically, and consists of minutes, copies of minutes, resolutions, and dinner invitations, as well as speech material from dinners marking the 40th and 50th anniversaries of the National League in 1916 and 1926, respectively.

This series consists of newspaper and periodical articles, banquet information and lectures, and notes of A.G. Mills between 1877 and 1928. Some of the articles relate to the New York Athletic Club, as well as Mills' work in baseball. Banquet information includes material related to the celebration of the returning 1889 world tourists.

This series consists of newspaper and periodical articles, banquet information and lectures, and notes of A.G. Mills between 1877 and 1928. Some of the articles relate to the New York Athletic Club, as well as Mills' work in baseball. Banquet information includes material related to the celebration of the returning 1889 world tourists.