Sipkjen Gooitzes Bosma, born circa 1857 (?), died before January 19, 1904, aged at most 47 years.

Sipkjen was married to
Hendrik Alberts Bijlsma, born circa 1853 (?), stock farmer, died before January 29, 1904, aged at most 51 years.

• 1 : Klaasje Bijlsma, born in Oosterwolde on February 12, 1880, died in Apeldoorn on July 12, 1955, aged 75 years.
  Klaasje was married in Ooststellingwerf on January 29, 1904, at the age of 23 to Anne Feenstra (aged 23 years), born in Warga on January 1, 1881, son of Sjoerd Gerrits Feenstra (barge hand, journeyman baker and warehouseman) and Harmke Joukes Tuinstra, machinist, died in Apeldoorn on September 14, 1960, aged 79 years.