Family tree Helmich » Jan Groos (1890-1964)

Personal data Jan Groos 


Household of Jan Groos

(1) He is married to Wilhelmina Cornelia Roodnat.

They got married on June 17, 1914 at Rotterdam, he was 24 years old.Source 2


(2) He is married to Maria Klatten.

They got married on August 23, 1933 at Rotterdam, he was 43 years old.Source 1

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Timeline Jan Groos

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Ancestors (and descendant) of Jan Groos

Bertus Groos
1867-1915

Jan Groos
1890-1964

(1) 1914

Wilhelmina Cornelia Roodnat
1890-1932

(2) 1933

Maria Klatten
1889-1954


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The Family tree Helmich publication was prepared by .contact the author
When copying data from this family tree, please include a reference to the origin:
Kees Helmich, "Family tree Helmich", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-helmich/I8975.php : accessed January 23, 2026), "Jan Groos (1890-1964)".