Royal Insurance Company of Liverpool insurance policy for William van Heyde, New Straitsville, Ohio, 1871 July 1, CEWI 6/10, Box: UNDA-Oversize Box 19. Thomas Ewing Family Papers, EWI. University of Notre Dame Archives. https://archivesspace.library.nd.edu/repositories/2/archival_objects/2082192 Accessed October 18, 2024.