Ouders van Sientje: Louis Agsteribben(11 nov.1864 A’dam/10 sept.1942 Auschwitz) & Elisabeth van Zorg(18 jul.1868 A’dam/10 jan.1927 A’dam).
Grootouders van Sientje: Jetta Aäron Costima(24 nov.1839 A’dam/24 jun.1920 A’dam) & Emanuel Salomon Agsteribbe(n)(7 jul.1820 A’dam/16 feb.1887 A’dam)
Addition