Sipma, Sjoerd Aukes. Letters and articles: 18 items. 2 letters, published, with translation, plus 16 articles. Pella, Iowa - Bornwerd, Groningen. S. A. Sipma to the citizens of Bornwerd. Published in Brief van Sjoerd Aukes Sipma aan de Ingezetenen van Bornwerd in Westdongeradeel, etc.; Dockum, De Wed. B. Schaafsma., 1848

Sipma, Sjoerd Aukes. Letters and articles: 18 items. 2 letters, published, with translation, plus 16 articles. Pella, Iowa - Bornwerd, Groningen. S. A. Sipma to the citizens of Bornwerd. Published in Brief van Sjoerd Aukes Sipma aan de Ingezetenen van Bornwerd in Westdongeradeel, etc.; Dockum, De Wed. B. Schaafsma., 1848, Folder: 13. Dutch Immigrant Papers Collection, COLL-078. Heritage Hall, Hekman Library. https://archives.calvin.edu/repositories/2/archival_objects/45753 Accessed August 21, 2026.