Source Information
Ancestry.com. Hertugdømmet Slesvigs Topographi [database on-line]. Provo, UT, USA: Ancestry.com Operations Inc, 2008.Original data: Johannes v. Schröder. Hertugdømmet Slesvigs Topographi. Oldenburg (i Holsteen): Fränckel's Forlag, 1854.
