The Dutch and American Gase and related families

The Family Tree of the American Gase, Moermond, Boes, Steigmeyer, Elchert, Nye and Yost families
The Family Tree of the Dutch Gase, Van Stein, Weder, Van der Fluit, Mortel and Moermond families
Family Group Sheets
(compiled by Ronald A. Gase. Please email me for corrections, additions, questions or if you have special personal requests)
Tree currently contains 154,002 individuals and 65,753 families.
(site updated Saturday, October 24th, 2025)
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Family Group Sheet

HUSBAND Klaas GASE
	Birth	13 February 1933	Amsterdam, Noord-Holland, Nederland
	Death	20 December 1997	Deventer, Overijssel, Nederland
	Occupation		natuurkundige CERN; Genève, Switzerland
	Burial		Begraafplaats Rusthof, Leusden, Utrecht, Nederland
	Marriage	14 December 1955	Amsterdam, Noord-Holland, Nederland
	Marriage	13 August 1990	Dieuwertje Johanna de HEER; Sauverny, Département de l'Ain, Région Auvergne-Rhône-Alpes, Frankrijk
	Father	Nicolaas GASE
	Mother	Reintje DUIJST
WIFE Hendrika "Hennie" BONDA
	Birth	20 April 1934	Oegstgeest, Zuid-Holland, Nederland
	Father	Jan Willem BONDA
	Mother	Jozina van den HEUVEL
CHILDREN
M	Nicolaas Franciscus GASE
	Birth	25 June 1956	Ede, Gelderland, Nederland
	Occupation		bankemployé;
F	Jozina Annemarie GASE
	Birth	27 August 1958	's-Gravenhage, Zuid-Holland, Nederland
M	Willem Jan Robert GASE
	Birth	27 April 1961	Geneva, Switzerland
	Marriage	19 March 1982	Michelle MOREAU; Meyrin, Canton de Genève, Zwitserland