Willem Frederik Tiemeijer, born circa 1851 (?).

Willem was married to
Christina van der Pot, born circa 1855 (?).

• 1 : Cornelis Hendrik Tiemeijer, born in Leiden on November 16, 1878, plumber, watchman and factory worker, died in Amsterdam on December 26, 1959, aged 81 years.
  Cornelis was married in Leeuwarden on August 23, 1913, at the age of 34 (1) to (and divorced in Leeuwarden on July 11, 1936 from) Froukje Herrema (aged 21 years), born in Leeuwarden on October 23, 1891, daughter of Roelof Herrema (worker) and Tietje Meyer.
  Cornelis was married in Amsterdam on July 6, 1938, at the age of 59 (2) to Jetske Tigchelaar (aged 46 years), born in Midlum on August 17, 1891, daughter of Simme Gerrits Tigchelaar (worker, tileworker and workman) and Janke Wielinga (woman worker), died in Amsterdam on January 6, 1950, aged 58 years.
  Jetske was married before in Leeuwarden on October 21, 1911, at the age of 20 to (and divorced on May 19, 1919 from) Jan de Groot (aged 22 years), born in Leeuwarden on June 9, 1889, son of Tiemen de Groot and Tjaltje de Vries, factory worker and pottebakker, died in Arnhem on May 1, 1968, aged 78 years. Jan was married afterwards in Leeuwarden on November 13, 1920, at the age of 31 to Antje Hommes (aged 40 years), born in Leeuwarden on October 1, 1880, daughter of Hendrik Hommes (antieksnijder) and Anneke Veening, died in Leeuwarden on February 8, 1947, aged 66 years. Antje was married before in Leeuwarden on December 10, 1904, at the age of 24 to Cornelis Snitker (aged 24 years), born in Amsterdam on October 20, 1880, son of Cornelis Snitker and Geertje de Vries, cabinetmaker, died in Leeuwarden on December 25, 1919, aged 39 years.