She is married to Hendrik Jacobus Jongezoon.
They got married on December 29, 1899 at 's-Gravenhage, Zuid-Holland, Nederland, she was 25 years old.Source 3
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Jeltje Couperus | ||||||||||||||||||||||||||||||||||
1899 | ||||||||||||||||||||||||||||||||||
Hendrik Jacobus Jongezoon | ||||||||||||||||||||||||||||||||||
Geboorteregister 1874, Achtkarspelen
https://www.graftombe.nl/names/info/238439/couperus