Descendants Hemerik-Broekhuizen-Huner-Koper-Barink » Gerardus Siera (1878-1940)

Personal data Gerardus Siera 


Household of Gerardus Siera

(1) He is married to Maria Cornelisse.

They got married on October 29, 1902 at Leiden, he was 24 years old.


Child(ren):


The couple were divorced from January 16, 1907 at Leiden.


(2) He is married to Cornelia de Jong.

They got married on March 10, 1909 at Leiden, he was 31 years old.


Child(ren):

  1. Cornelia Siera  1909-1912
  2. Theodorus Siera  1911-1988

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Timeline Gerardus Siera

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Ancestors (and descendant) of Gerardus Siera

Maria Sira
1830-1854
Henricus Dreef
1811-1859
Maartje Lut
1810-1904

Gerardus Siera
1878-1940

(1) 1902

Maria Cornelisse
1872-1954

Maria Magdalena Siera
1903-????
(2) 1909

Cornelia de Jong

Cornelia Siera
1909-1912
Theodorus Siera
1911-1988

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Relationship Gerardus Siera

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Historical events

Day of marriage March 10, 1909

  • The temperature on March 10, 1909 was between -0.7 °C and 8.3 °C and averaged 2.7 °C. There was 6.9 hours of sunshine (60%). 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 February 12, 1908 to August 29, 1913 the cabinet Heemskerk, with Mr. Th. Heemskerk (AR) as prime minister.
  • In the year 1909: Source: Wikipedia
    • The Netherlands had about 5.8 million citizens.
    • February 26 » Kinemacolor, the first successful color motion picture process, is first shown to the general public at the Palace Theatre in London.
    • April 27 » Sultan of Ottoman Empire Abdul Hamid II is overthrown, and is succeeded by his brother, Mehmed V.
    • May 31 » The National Negro Committee, forerunner to the National Association for the Advancement of Colored People (NAACP), convenes for the first time.
    • July 16 » Persian Constitutional Revolution: Mohammad Ali Shah Qajar is forced out as Shah of Persia and is replaced by his son Ahmad Shah Qajar.
    • September 7 » Eugène Lefebvre crashes a new French-built Wright biplane during a test flight at Juvisy, south of Paris, becoming the first aviator in the world to lose his life in a powered heavier-than-air craft.
    • November 18 » Two United States warships are sent to Nicaragua after 500 revolutionaries (including two Americans) are executed by order of José Santos Zelaya.

Day of death December 7, 1940

  • The temperature on December 7, 1940 was between 1.5 °C and 6.3 °C and averaged 3.5 °C. There was 8.5 mm of rain during 8.1 hours. There was 0.7 hours of sunshine (9%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west. 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, 1939 to September 3, 1940 the cabinet De Geer II, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
  • In The Netherlands , there was from September 3, 1940 to July 27, 1941 the cabinet Gerbrandy I, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
  • In the year 1940: Source: Wikipedia
    • The Netherlands had about 8.8 million citizens.
    • May 10 » World War II: German fighters accidentally bomb the German city of Freiburg.
    • May 15 » World War II: After fierce fighting, the poorly trained and equipped Dutch troops surrender to Germany, marking the beginning of five years of occupation.
    • May 17 » World War II: Germany occupies Brussels, Belgium.
    • September 9 » Treznea Massacre in Transylvania.
    • October 15 » President Lluís Companys of Catalonia is executed by the Francoist government.
    • December 9 » World War II: Operation Compass: British and Indian troops under the command of Major-General Richard O'Connor attack Italian forces near Sidi Barrani in Egypt.

About the surname Siera

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The Descendants Hemerik-Broekhuizen-Huner-Koper-Barink publication was prepared by .contact the author
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/I80450.php : accessed February 3, 2026), "Gerardus Siera (1878-1940)".