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man‎Willem Groos‏‎
Born ‎± 1850 Molkwerum

Married ‎8 Jun 1879, age approximately 29 years to:

woman‎Geeske de Jong‏‎, age by marriage approximately 29 years
Born ‎± 1850

Children:

1.
man‎Karel Groos‏‎
Born ‎5 Jun 1880 (birth declaration: ‎5 Jun 1880)

2.
man‎Jan Groos‏‎
Born ‎25 Dec 1883 Hemelumer Oldeferd (birth declaration: ‎25 Dec 1883)

3.
man‎Siebe Groos‏‎
Born ‎22 Nov 1886 Hemelumer Oldeferd

4.
woman‎Albertje Groos‏‎
Born ‎26 Apr 1895