Correspondence and Personal Material: includes correspondence between Sarah and the Internal Revenue Service regarding Halsey Cooper's position as General Deputy; includes letter notifying Halsey Cooper of his dismissal from his position in Internal Revenue Service;, Mar. 1879

Correspondence and Personal Material: includes correspondence between Sarah and the Internal Revenue Service regarding Halsey Cooper's position as General Deputy; includes letter notifying Halsey Cooper of his dismissal from his position in Internal Revenue Service;, Mar. 1879, Box: 2, Folder: 34. Sarah Brown Ingersoll Cooper papers, 6543. Division of Rare and Manuscript Collections. https://archives.library.cornell.edu/repositories/2/archival_objects/522633 Accessed January 23, 2026.