Stamboom Van der Werff » Doetje Hendriks de Jong (1885-1959)

Personal data Doetje Hendriks de Jong 

Household of Doetje Hendriks de Jong

She is married to Tjeerd Sytema.

They got married on June 27, 1907 at Utingeradeel, Friesland, Nederland, she was 21 years old.


  1. Sytse Sytema  1907-1986
  2. Hendrik Sytema  1908- 
  3. Folkert Sytema  1910-1990 
  4. Janke Sytema  1912-2004
  5. Anne Sytema  1914- 
  6. Tjibbe Sytema  1916-1985 
  7. (Not public)

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About the surname De Jong

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Historical events

  • The temperature on July 20, 1885 was about 18.9 °C. There was 2 mm of rain. The air pressure was 7 kgf/m2 and came mainly from the west-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 96%. Source: KNMI
  • Koning Willem III (Huis van Oranje-Nassau) was from 1849 till 1890 sovereign of the Netherlands (also known as Koninkrijk der Nederlanden)
  • In The Netherlands , there was from April 23, 1884 to April 21, 1888 the cabinet Heemskerk, with Mr. J. Heemskerk Azn. (conservatief) as prime minister.
  • In the year 1885: Source: Wikipedia
    • The Netherlands had about 4.5 million citizens.
    • February 23 » Sino-French War: French Army gains an important victory in the Battle of Đồng Đăng in the Tonkin region of Vietnam.
    • March 19 » Louis Riel declares a provisional government in Saskatchewan, beginning the North-West Rebellion.
    • March 23 » Sino-French War: Chinese victory in the Battle of Phu Lam Tao near Hưng Hóa, northern Vietnam.
    • April 24 » American sharpshooter Annie Oakley is hired by Nate Salsbury to be a part of Buffalo Bill's Wild West.
    • May 12 » North-West Rebellion: The four-day Battle of Batoche, pitting rebel Métis against the Canadian government, comes to an end with a decisive rebel defeat.
    • September 6 » Eastern Rumelia declares its union with Bulgaria, thus accomplishing Bulgarian unification.

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  • The temperature on February 10, 1959 was between -4.6 °C and -1.9 °C and averaged -3.5 °C. The almost completely overcast was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northeast. Source: KNMI
  • Koningin Juliana (Huis van Oranje-Nassau) was from September 4, 1948 till April 30, 1980 sovereign of the Netherlands (also known as Koninkrijk der Nederlanden)
  • In The Netherlands , there was from December 22, 1957 to May 19, 1959 the cabinet Beel II, with Dr. L.J.M. Beel (KVP) as prime minister.
  • In The Netherlands , there was from May 19, 1959 to July 24, 1964 the cabinet De Quay, with Prof. dr. J.E. de Quay (KVP) as prime minister.
  • In the year 1959: Source: Wikipedia
    • The Netherlands had about 11.3 million citizens.
    • February 19 » The United Kingdom grants Cyprus independence, which is formally proclaimed on August 16, 1960.
    • May 30 » The Auckland Harbour Bridge, crossing the Waitematā Harbour in Auckland, New Zealand, is officially opened by Governor-General Charles Lyttelton, 10th Viscount Cobham.
    • June 9 » The USSGeorge Washington is launched. It is the first nuclear-powered ballistic missile submarine.
    • July 1 » Specific values for the international yard, avoirdupois pound and derived units (e.g. inch, mile and ounce) are adopted after agreement between the US, the United Kingdom and other Commonwealth countries.
    • October 2 » Rod Serling's anthology series The Twilight Zone premieres on CBS. The first episode is “Where Is Everybody?”
    • November 23 » French President Charles de Gaulle declares in a speech in Strasbourg his vision for "Europe, from the Atlantic to the Urals".

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Source: Wikipedia

Source: Wikipedia


The publication Stamboom Van der Werff has been compiled by (contact the author).
When copying data from this family tree, please include a reference to the origin:
Hans van der Werff, "Stamboom Van der Werff", database, Genealogy Online ( : accessed November 30, 2021), "Doetje Hendriks de Jong (1885-1959)".