Tjerk Kwast, born circa 1847.

Tjerk was married to
Wiepkje van der Meij, born circa 1852 (?).

• 1 : Anna Kwast, born in Harlingen on June 12, 1875, died there on April 8, 1934, aged 58 years.
  Anna was married in Harlingen on August 19, 1901, at the age of 26 to Tjerk de Groot (aged 25 years), born in Harlingen on September 5, 1875, son of Dirk de Groot (dock hand, docker, docker, docker, workman, dock hand, dock hand, workman, dock hand, dock hand, dock hand and scheepssjouwerman) and Maria Tjerks, died in Harlingen on March 2, 1956, aged 80 years.
  

• 2 : Marten Kwast, born in Harlingen on June 25, 1877.
  

• 3 : Siebe Kwast, born in Harlingen on April 4, 1879.