Descendants Hemerik-Broekhuizen-Huner-Koper-Barink » Agatha Siera (1907-)

Personal data Agatha Siera 


Household of Agatha Siera

She is married to Antonie Plezier.

They got married on July 1, 1931 at Leiden, she was 24 years old.

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Timeline Agatha Siera

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Ancestors (and descendant) of Agatha Siera

Jan den Hoed
1851-1933
Willem Siera
1880-????

Agatha Siera
1907-????

1931

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Relationship Agatha Siera

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Historical events

  • The temperature on March 6, 1907 was between -0.7 °C and 7.1 °C and averaged 2.9 °C. There was 3.4 mm of rain. There was 1.8 hours of sunshine (16%). The average windspeed was 2 Bft (weak wind) and was prevailing from the northwest. 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 August 17, 1905 to February 11, 1908 the cabinet De Meester, with Mr. Th. de Meester (unie-liberaal) as prime minister.
  • In the year 1907: Source: Wikipedia
    • The Netherlands had about 5.6 million citizens.
    • February 5 » Belgian chemist Leo Baekeland announces the creation of Bakelite, the world's first synthetic plastic.
    • February 9 » The Mud March is the first large procession organised by the National Union of Women's Suffrage Societies (NUWSS).
    • July 29 » Sir Robert Baden-Powell sets up the Brownsea Island Scout camp in Poole Harbour on the south coast of England. The camp runs from August 1 to August 9 and is regarded as the foundation of the Scouting movement.
    • September 29 » The cornerstone is laid at the Cathedral Church of Saint Peter and Saint Paul (better known as Washington National Cathedral) in Washington, D.C.
    • October 21 » The 1907 Qaratog earthquake hits the borders of Uzbekistan and Tajikistan, killing between 12,000 and 15,000 people.
    • December 11 » The New Zealand Parliament Buildings are almost completely destroyed by fire.
  • The temperature on July 1, 1931 was between 8.1 °C and 23.6 °C and averaged 16.6 °C. There was 12.3 hours of sunshine (74%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-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 August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
  • In the year 1931: Source: Wikipedia
    • The Netherlands had about 7.9 million citizens.
    • February 20 » The U.S. Congress approves the construction of the San Francisco–Oakland Bay Bridge by the state of California.
    • March 11 » Ready for Labour and Defence of the USSR, abbreviated as GTO, is introduced in the Soviet Union.
    • March 25 » The Scottsboro Boys are arrested in Alabama and charged with rape.
    • May 7 » The stand-off between criminal Francis Crowley and 300 members of the New York Police Department takes place in his fifth-floor apartment on West 91st Street, New York City.
    • July 1 » Wiley Post and Harold Gatty become the first people to circumnavigate the globe in a single-engined monoplane aircraft.
    • November 22 » Al-Mina'a SC is founded in Iraq.

About the surname Siera

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When copying data from this family tree, please include a reference to the origin:
R.A.Hemerik, "Descendants Hemerik-Broekhuizen-Huner-Koper-Barink", database, Genealogy Online (https://www.genealogieonline.nl/parenteel-hemerik/I80436.php : accessed January 20, 2026), "Agatha Siera (1907-)".