Pieters Sybes Katsma, born circa 1798, shopkeeper, died before July 30, 1872, aged at most 74 years.

Pieters was married to
Dieuwke Tjebbes Bonnema, born circa 1800, died before October 16, 1859, aged at most 59 years.

• 1 : Sybrigje Pieters Katsma, born in Workum on September 1, 1836, died there on July 29, 1872, aged 35 years.
  Sybrigje was married in Workum on October 16, 1859, at the age of 23 to Bauke Johannes Feenstra (aged 24 years), born in Eernewoude on February 15, 1835, son of Johannes Baukes Feenstra (peat cutting supervisor, barge hand, bargeman, eel bargeman, barge hand and eel bargeman) and Antje Gjalts Wester, sailor, died in 7 km uit Engelse kust on December 22, 1880, aged 45 years.
  Bauke was married afterwards in Workum on February 26, 1873, at the age of 38 to Sijtske Willems Zult (aged 25 years), born in IJlst on September 10, 1847, daughter of Willem Jeltes Zult (castellan) and Trijntje Aukes de Vries. Sijtske was married afterwards to N.N., born circa 1855 (?).