"Genealogical research among Pennsylvania German and Huguenot families" by Charles R. Roberts - Washington D.C.: The National Geneaological Society, 1933, Box: 27, Volume: 87. Personal papers of Joseph M. Kellogg, PP 237. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/136908 Accessed May 20, 2024.