Family tree Grevinga » johannes gerhardus hammer (± 1885-????)

Personal data johannes gerhardus hammer 


Household of johannes gerhardus hammer

He is married to hermina keizer.

They got married on May 21, 1921 at goor.

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Timeline johannes gerhardus hammer

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Ancestors (and descendant) of johannes gerhardus hammer

johannes gerhardus hammer
????-
berendina meijer
????-
jan mengerink
± 1814-????
janna leeftink
± 1818-????

johannes gerhardus hammer
± 1885-????

1921

hermina keizer
± 1890-????


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    Historical events

    Day of marriage May 21, 1921

    • The temperature on May 21, 1921 was between 2.0 °C and 19.1 °C and averaged 12.6 °C. There was 12.7 hours of sunshine (80%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
    • Koningin Wilhelmina (Huis van Oranje-Nassau) was from 1890 till 1948 sovereign of the Netherlands (also known as Koninkrijk der Nederlanden)
    • In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
    • In the year 1921: Source: Wikipedia
      • The Netherlands had about 6.9 million citizens.
      • March 6 » Portuguese Communist Party is founded as the Portuguese Section of the Communist International.
      • March 31 » The Royal Australian Air Force is formed.
      • July 11 » The Red Army captures Mongolia from the White Army and establishes the Mongolian People's Republic.
      • July 27 » Researchers at the University of Toronto, led by biochemist Frederick Banting, prove that the hormone insulin regulates blood sugar.
      • October 26 » The Chicago Theatre opens.
      • November 4 » Japanese Prime Minister Hara Takashi is assassinated in Tokyo.

    About the surname Hammer

    • View the information that Genealogie Online has about the surname Hammer.
    • Check the information Open Archives has about Hammer.
    • Check the Wie (onder)zoekt wie? register to see who is (re)searching Hammer.

    The Family tree Grevinga publication was prepared by .contact the author
    When copying data from this family tree, please include a reference to the origin:
    H. Grevinga, "Family tree Grevinga", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-grevinga/I970.php : accessed January 11, 2026), "johannes gerhardus hammer (± 1885-????)".