Family with parents
father Parents Henricus Franciscus JosephusSijses Maria Margarethaten Berge	Johannes JacobusSijses 1855–1917
mother Parents Harmde Waard Hemke TammesHoutgast	Gerardinade Waard 1858–1926
herself Family Heinrich HermannTreu Hermann AndreasTreu Gerardina Grietje“Dinie” Treu Johannes Jacobus“Joop” Treu	Maria Margaretha“Mies” Sijses 1879–1972
younger sister Family Hendrikus JohannesPeletier Hendrikus Johannes“Henk” Peletier Johanna Jacoba“Annie” Peletier Gerardina JohannaPeletier	Hemma Gerardina“Emmy” Sijses 1880–1959
younger sister Family Frederik“Fre” van Dijk Tjeerco Johanvan Dijk	Henderika“Riek” Sijses 1882–1956
younger sister Family Johannes Wichertvan Goozen Johanna Wilhelmina“Minie” van Goozen Johannes Jacobus“Joop” van Goozen	Harmina“(Her)mien” Sijses 1882–1958
younger sister Family (none)	Anna CatharinaSijses 1884–1933
younger sister Family (none)	NNSijses 1886–1886
younger brother Family (none)	Johannes HenricusSijses 1888–1889
younger sister Family Hendrik JohannesSijtsema Private	Gerardina Johanna“Dien” Sijses 1889–1964
younger brother Family Maria Anthoniade Ronde Johannes JacobusSijses Anna MariaSijses Gerard PieterSijses Private MarianneSijses	Johannes HenderikusSijses 1894–1954
younger sister Family Petrus“Pe” de Vries Private	Helena“Lena” Sijses 1894–1962
younger sister Family Dominicus Johan Frans MariaSprock Private Johannes Frans Dominicus“Joop” Sprock Gerardina Johanna“Dinie” Sprock	Margaretha“Greta” Sijses 1895–1971
younger sister Family (none)	TammolinaSijses 1897–1897
Family with Heinrich HermannTreu
husband Parents Hermann AndreasTreu GrietjeLijsting	Heinrich HermannTreu 1875–1924
herself Parents Johannes JacobusSijses Gerardinade Waard	Maria Margaretha“Mies” Sijses 1879–1972
son Family Sussana Margaretha GeertruidaDijkman Private Private Erlfried Bodo Willibrord Maria“Bodo” Treu Private	Hermann AndreasTreu 1907–1999
daughter Family (none)	Gerardina Grietje“Dinie” Treu