Picture postcard, Paraguay, from Harold to Mr. and Mrs. J.J. Herd, [postmarked, no stamp], 1969, Box: 8, Folder: 61. Herd family papers, RH MS 1374. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/210548 Accessed June 16, 2024.