Scope and arrangement
The Leffingwell papers consists of correspondence, maps, pamphlets, posters, serials, prospectus, advertisements and newspapers regarding investments-, in land, mines and industry. Exactly, why Leffingwell received these papers have not been fully established. The Papers may be Leffingwell's personal interest in investments; she was gathering information on investments for John Shaw Billings, the Director of the New York Public Library for the endowment of The Astor Library: Leffingwell was collecting general information on investments for the Astor Library. Series one: General Correspondence, 1905-1911, incoming correspondence to Leffingwell regarding potential investments in speculative ventures such as mines, land deals and railroads. This correspondence is accompanied with literature. There is also a section regarding New York City c. 1905-1911. Series two: This series contains advertisements for investments, maps, posters, serials and newspapers, i. e. "Mad Creek Kicker"; "The Western Empire"; "Success'.
The Christophea Leffingwell papers are arranged in two series: