Willem Gerbens Topma, born circa 1764 (?), jobless.

Willem was married to
Wytsche Ruurds van Grouw, born circa 1768 (?), died before April 27, 1839, aged at most 71 years.

• 1 : Berber Willems Topma, born in Grouw on October 4, 1791.
  Berber was married (1) to Jelle Dirks Stellingwerf, born circa 1758 (?), died in Leeuwarden on February 2, 1828, aged approximately 70 years.
  Berber was married in Baarderadeel on April 27, 1839, at the age of 47 (2) to Ruurd Cornelis Veenstra (aged 47 years), born in Oosterlittens on November 16, 1791, christened there on December 11, 1791, son of Cornelis Pieters (schuitevoerder, schuitevoerder and schuitevoerder) and Baukjen Ruurds (woman worker).