Registered
- Jaapje Jacoba Heikoop, born on October 16, 1911 in Nieuwerkerk aan den IJssel
- Nicolaas Heikoop, born on March 5, 1913 in Nieuwerkerk aan den IJssel, Tuinder by profession
- Hendrikus Heikoop, born on February 3, 1915 in Nieuwerkerk aan den IJssel, Smid by profession
- Matheus Heikoop, born on December 23, 1919 in Nieuwerkerk aan den IJssel
- Johan Heikoop, born on May 23, 1921 in Nieuwerkerk aan den IJssel
- Johannes Heikoop, born on November 18, 1872 in Nieuwerkerk aan den IJssel, Koopman in pluimvee by profession
- Hendrika de Kooter, born on January 24, 1879 in Hillegersberg
- Johannes Heikoop, born on April 9, 1899 in Nieuwerkerk aan den IJssel, Los Werkman by profession
- Cornelis Heikoop, born on July 4, 1903 in Nieuwerkerk aan den IJssel, Pluimveekoopman by profession
- Willem Heikoop, born on November 27, 1904 in Nieuwerkerk aan den IJssel
- Jacob Heikoop, born on May 22, 1907 in Nieuwerkerk aan den IJssel
- Dirk Heikoop, born on September 19, 1908 in Nieuwerkerk aan den IJssel
- Jacobus Heikoop, born on March 9, 1910 in Nieuwerkerk aan den IJssel, Grondwerker by profession

Source citation
Central Holland regional archive in Midden-Holland, Bevolkingsregisters
Gezinskaarten Nieuwerkerk aan den IJssel 1920-1940, Part: 1072, Period: 1920-1940, Nieuwerkerk aan den IJssel, archive 0034, inventory number 1072, Gezinskaarten_A-L_NkIJ_1920-1940, folio 1123
This data was last updated on November 10, 2023 by the source holder and first published on Open Archives on February 23, 2024. Provenance information: A2Acollection oai-pmh_20240906_11475_00011475.xml van SMH.
Internet address
- https://samh.nl/bronnen/genealogie/deeds/b966990b-4005-445b-af6c-15794087d70a
- https://www.openarchieven.nl/smh:b966990b-4005-445b-af6c-15794087d70a
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