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 Hendrik JONKMAN
	Birth	7 June 1911	Groningen, Groningen, Nederland
	Death	January 1986	Amsterdam-Noord, Noord-Holland, Nederland
	Marriage	10 December 1934	Groningen, Groningen, Nederland
WIFE Pieterdina "Dina" JONK
	Birth	3 January 1915	Groningen, Groningen, Nederland
	Death	April 2004	Amsterdam-Noord, Noord-Holland, Nederland
CHILDREN
M	Gerrit JONKMAN
	Birth	8 May 1936	Groningen, Groningen, Nederland
	Death	17 February 2021	Stockbridge, Hampshire, England, UK
	Marriage	28 December 1961	Janna Machteld "Jannie" de BOER;