Family: Baron Willem Hendrik van Heemstra / Johanna Balthazarina van Idsinga (F3704)
m. 7 Nov 1803-
Male
Baron Willem Hendrik van Heemstra
Birth 18 Oct 1779 Oenkerk 
Death 3 Dec 1826 Leeuwarden Burial Marriage 7 Nov 1803 Hoogkerk Father Baron Schelto van Heemstra | F3709 Group Sheet Mother Wiskje Hendriks van Scheltinga | F3709 Group Sheet
Female
Johanna Balthazarina van Idsinga
Birth 2 Jul 1783 Groningen Death 5 Sep 1850 Baarn Burial Father Balthasar Daniel van Idsinga | F4548 Group Sheet Mother Margaretha Theodora Collot d'Escury | F4548 Group Sheet
Male
+ Baron Schelto van Heemstra
Birth 14 Nov 1807 Groningen Death 20 Dec 1864 Maartensdijk Burial Spouse Henriëtte Hillegonda de Waal | F3706 Marriage 8 Jul 1833 Groningen
Male
+ Balthazar Theodorus Willems van Heemstra
Birth 14 Aug 1809 Groningen Death 24 Dec 1878 Den Haag Burial Spouse Anna Catharina Louisa Hillegonda van Cammingha | F3716 Marriage 2 Jul 1841 Huizum
Male
+ Baron Frans Julius Johan van Heemstra
Birth 15 Jul 1811 Groningen Death 19 Feb 1878 Den Haag Burial Spouse Barones Henriëtta Philippina Jacoba van Pallandt | F3703 Marriage 28 Jun 1837 Sassenheim
Male
+ Simeon Petrus van Heemstra
Birth 6 Oct 1815 Veenklooster Death 12 Jul 1896 Arnhem Burial 16 Jul 1896 Baarn Spouse Jonkvrouw Sophia Adriana Johanna Fabricius van Leyenburg | F3728 Marriage 25 Apr 1845 Amsterdam