Tjitske Jurgens Geuken, born circa 1785 (?), tradeswoman.

Tjitske was married to
Jacob Lodewijk Scheffer, born circa 1776, farmer, died in Harlingen on January 10, 1827, aged approximately 51 years.

• 1 : Lodewijk Jacobs Scheffer, born in Grouw in the year 1808, farmhand and workman, died in Harlingen on August 19, 1872, aged 64 years.
  Lodewijk was married in Harlingen on August 16, 1827, at the age of 19 to Stijntje Jans Tichelaar (aged 22 years), born in Midlum on March 19, 1805, christened there on April 14, 1805, daughter of Jan Cornelis Tichelaar (tilebaker, fisherman and worker) and Rinske Gerrits Tigchelaar (peat tallier), maid servant, died in Harlingen on April 16, 1871, aged 66 years.