Wieghardt-Brooks-Pertsch families papers, 6614, Box: 1; Box: 2; Box: 3; mapcase folder: 1; mapcase folder: 2. Division of Rare and Manuscript Collections.
Wieghardt-Brooks-Pertsch families papers, 6614, Box: 1; Box: 2; Box: 3; mapcase folder: 1; mapcase folder: 2. Division of Rare and Manuscript Collections. https://archives.library.cornell.edu/repositories/2/resources/6278 Accessed October 18, 2025.
