The Andrew Watterson Blackwood Sr. Manuscript Collection, SCM 029, Box: 1. Princeton Theological Seminary. Library. Special Collections.
The Andrew Watterson Blackwood Sr. Manuscript Collection, SCM 029, Box: 1. Princeton Theological Seminary. Library. Special Collections. https://princetonseminaryarchives.libraryhost.com/repositories/2/resources/328 Accessed October 31, 2024.