Genealoger Family Histories
- Die Ahnen
der Krohn's. (In German)
Descendants of Wilhelm Heinrich Krohn, 1826-1916.
- Leuenberger, Boyd. The Johann Friedrich Eggert and Dorothea Maria Fredrica Krohn Families of Mecklenburg, Germany. Golden, Colorado: Privately published, 2007. In addition to the family history, this volume also contains historical information about Mecklenburg and a personal name index.