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 153.865 individuals and 65,682 families.
(site updated Wednesday, September 24th, 2025)
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Family Group Sheet

HUSBAND Sijbrand Jan THOMASSE Sr.
	Birth	30 December 1893	Amsterdam, Noord-Holland, Nederland
	Occupation	April 1920	kraandrijver; Amsterdam, Noord-Holland, Nederland
	Death	27 July 1955	Bennebroek, Bloemendaal, Noord-Holland, Nederland
	Occupation		fitter; Amsterdam, Noord-Holland, Nederland
	Marriage	21 April 1920	Amsterdam, Noord-Holland, Nederland
	Father	Sijbrand Johannes THOMASSE
	Mother	Alberdina BARTELS
WIFE Amelia Susanna Christina "Mé" GASE
	Birth	25 January 1897	Amsterdam, Noord-Holland, Nederland
	Death	10 October 1982	Amsterdam, Noord-Holland, Nederland
	Burial	15 October 1982	Begraafplaats De Nieuwe Ooster, Amsterdam, Nederland
	Father	Anthonie Thomas GASE Jr.
	Mother	Anna Margaretha GERRITSEN
CHILDREN
M	Sijbrand Jan THOMASSE Jr.
	Birth	1 November 1920	Amsterdam, Noord-Holland, Nederland
	Occupation		bank employé;
	Marriage	7 May 1945	Auguste Elisabeth BEEUSAERT; Hannover, Niedersachsen, Germany