Family with parents
father Parents WesseliusHemmelder GeertruidaPrinsen	BernardusHemmelder 1817–1885
mother Parents JohannesWesterhof DinaSteggink	ChristinaWesterhof 1818–1895
elder sibling Family (none)	NNHemmelder 1847–1847
elder sibling Family (none)	NNHemmelder 1849–1849
elder brother Family (none)	Bernardus AlbertusHemmelder 1850–1855
elder sister Family Lambertus MolinusWeber Johannes BernardusWeber Johanna BerendinaWeber Johanna BerendinaWeber NNWeber MolinusFredrikusweber	JohannaHemmelder 1852–1932
himself Family CatharinaKockman	Gerhardus JohannesHemmelder 1854–1927
younger brother Family (none)	BernardHemmelder 1857–1941
younger sister Family (none)	BernardinaHemmelder 1860–1865
Family with CatharinaKockman
himself Parents BernardusHemmelder ChristinaWesterhof	Gerhardus JohannesHemmelder 1854–1927
wife Parents (unknown)	CatharinaKockman