Administrative Information
Acquisition Information
The cyphering book collection of Nerida F. Ellerton and McKenzie A. Clements was purchased by the Library of Congress in 2021.
Processing History
The cyphering book collection of Nerida F. Ellerton and McKenzie A. Clements was arranged and described by Katherine Madison in 2021.
The archivist maintained the order created by Ellerton and Clements, who assigned numbers to the manuscripts in near-chronological order. Each number corresponds to an individual or family. Multiple books by the same creator were grouped under the same number and appended with the suffixes "a," "b," and so on. This arrangement corresponds to the descriptions in Ellerton and Clements's Interpretive Reference Catalogue (described below) and has been maintained by the archivist.
Related Material
Related material in the Manuscript Division includes schoolbooks containing math problems by George Washington in the George Washington Papers (see https://hdl.loc.gov/loc.mss/eadmss.ms008068), which are available online at https://hdl.loc.gov/loc.mss/collmss.ms000010. The Manuscript Division also holds leaves from Abraham Lincoln's "arithmetic book" in the Herndon-Weik Collection of Lincolniana (see https://hdl.loc.gov/loc.mss/eadmss.ms001002), which are available online at https://hdl.loc.gov/loc.mss/collmss.ms000093.
Preferred Citation
Researchers wishing to cite this collection should include the following information: Container number, Ellerton-Clements Cyphering Book Collection, Manuscript Division, Library of Congress, Washington, D.C.