Administrative Information
Provenance
The letterbooks of R. C. Leffingwell, United States assistant secretary of the treasury, were given to the Library of Congress by Edward Pulling in 1961.
Processing History
The letterbooks were processed in 1972 and 1979. The finding aid was revised in 2010.
Microfilm
A microfilm edition of these papers is available on thirty-seven reels. Consult reference staff in the Manuscript Division concerning availability for purchase or interlibrary loan. To promote preservation of the originals, researchers are required to consult the microfilm edition.
Preferred Citation
Researchers wishing to cite this collection should include the following information: Container or reel number, R. C. Leffingwell Letterbooks, Manuscript Division, Library of Congress, Washington, D.C.