Arthur Le Rossignol, to Ethel Le Rossignol, n. p., 1918 September 25, MSE/MD 3821-59, Box: 1, Folder: 59. Le Rossignol Correspondence, MSE/MD 3821. University of Notre Dame Rare Books & Special Collections. https://archivesspace.library.nd.edu/repositories/3/archival_objects/775191 Accessed November 17, 2024.