On 26 May 1808 when Klaas Hans Annes was 25, he first married
Frederikje Sjoerds Kromhout, daughter of
Sjoerd Annes Kromhout (26 Apr 1750-9 Aug 1813) &
Sytske Rommerts (-aft Aug 1813), in Wolvega (Weststellingwerf), Friesland.
Born ca 1778. Frederikje Sjoerds died in Weststellingwerf, Friesland on 24 Dec 1838.538