Family with parents
father
Parents
Henricus Franciscus JosephusSijses
Maria Margarethaten Berge
Rudolphus Antonius AmbrosiusSijses
1854–1921
mother
Parents
Petrus JohannesMiljoen
Margaretha AlidaDriesens
Anna MargarethaMiljoen
1859–1909
elder sister
Family
(none)
NNSijses
1886–1886
elder sister
Family
EgbertPultrum
  • AnnaSijses
  • Henderikus JohannesSijses
Margaretha AlidaSijses
1888–1935
elder sister
Family
(none)
Hendrika Francisca JosephaSijses
1889–1890
elder brother
Family
Carolina JohannaSplit
  • Rudolph Antonius AmbrosiusSijses
  • Ida Wilhelmina ClasinaSijses
  • Private
Henricus JohannesSijses
1890–1967
elder sister
Family
JacobKooistra
  • Private
Wilhelmina HarmannaSijses
1895–1982
elder sister
Family
(none)
Gerritdina JohannaSijses
1896–1918
herself
Family
FrederikHuizinga
Helena CatharinaSijses
1898–1953
younger brother
Family
(none)
Rudolphus Antonius AmbrosiusSijses
1901–1901
Father’s family with MariaMaurits
father
Parents
Henricus Franciscus JosephusSijses
Maria Margarethaten Berge
Rudolphus Antonius AmbrosiusSijses
1854–1921
step-mother
Parents
Berend BerendsMaurits
Antje BerendsSchakelaar
MariaMaurits
1855–1885
half-sister
Family
Hindrik JanDoff
  • FreerkDoff
  • Maria AkinaDoff
  • JanDoff
  • Private
  • Private
Maria MargarethaSijses
1883–1960
half-sister
Family
(none)
NNSijses
1885–1885
Family with FrederikHuizinga
husband
Parents
HermannusHuizinga
AnnaTerpstra
FrederikHuizinga