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 Dr. Justin Allen ZIVIN MD
	Birth	17 August 1946	Chicago, Cook County, Illinois, USA
	Death	17 February 2018	Rancho Santa Fe, San Diego County, California, USA
	Occupation		neurologist;
	Marriage	17 August 1968
WIFE Reni-Zoe MANDELL
	Birth	29 June 1946	Cook County, Illinois, USA
CHILDREN
F	Kara Dale Toby ZIVIN
	Birth	25 December 1975	San Francisco County, California, USA
	Marriage	29 March 2010	Ryan Jay McCAMMON; Tubac, Santa Cruz County, Arizona, USA
	Marriage	24 August 2001	Derek Edward BAMBAUER; Boston, Suffolk County, Massachusetts, USA