Family tree Weening » Jan Helmholt (1902-1987)

Personal data Jan Helmholt 


Household of Jan Helmholt

He is married to Roelfke Paulina Douma.

They got married on May 19, 1928 at Oldehove (Gr), he was 26 years old.Source 3

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Timeline Jan Helmholt

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Ancestors (and descendant) of Jan Helmholt

Andries Helmholt
1840-1918
Korneliske Faber
1837-1875
Jan Roetcicoender
1838-1910
Katharina Plüger
1838-1882

Jan Helmholt
1902-1987

1928

Roelfke Paulina Douma
1905-1985


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Sources

  1. Geboorteregister Winsum 1902
  2. https://graftombe.nl/names/info/2000132/helmholt
  3. Huwelijksregister Oldehove 1928

Historical events

Birthday April 5, 1902

  • The temperature on April 5, 1902 was between 3.7 °C and 10.9 °C and averaged 6.8 °C. There was 2.9 hours of sunshine (22%). 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 1, 1901 to August 16, 1905 the cabinet Kuijper, with Dr. A. Kuijper (AR) as prime minister.
  • In the year 1902: Source: Wikipedia
    • The Netherlands had about 5.2 million citizens.
    • March 7 » Second Boer War: Boers, led by Koos de la Rey, inflict the biggest defeat upon the British since the beginning of the war, at Tweebosch.
    • March 18 » Macario Sakay issues Presidential Order No. 1 of his Tagalog Republic.
    • April 2 » "Electric Theatre", the first full-time movie theater in the United States, opens in Los Angeles.
    • August 22 » Theodore Roosevelt becomes the first President of the United States to make a public appearance in an automobile.
    • November 21 » The Philadelphia Football Athletics defeated the Kanaweola Athletic Club of Elmira, New York, 39–0, in the first ever professional American football night game.
    • November 29 » The Pittsburgh Stars defeated the Philadelphia Athletics, 11–0 to win the first championship associated with an American national professional football league.

Day of marriage May 19, 1928

  • The temperature on May 19, 1928 was between 3.4 °C and 14.6 °C and averaged 9.0 °C. There was 4.5 mm of rain. There was 8.1 hours of sunshine (51%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west-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 March 8, 1926 to August 10, 1929 the cabinet De Geer I, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
  • In the year 1928: Source: Wikipedia
    • The Netherlands had about 7.6 million citizens.
    • January 31 » Leon Trotsky is exiled to Alma-Ata.
    • May 15 » Walt Disney character Mickey Mouse premieres in his first cartoon, "Plane Crazy".
    • June 8 » Second Northern Expedition: The National Revolutionary Army captures Peking, whose name is changed to Beijing ("Northern Capital").
    • July 7 » Sliced bread is sold for the first time (on the inventor's 48th birthday) by the Chillicothe Baking Company of Chillicothe, Missouri.
    • September 18 » Juan de la Cierva makes the first autogyro crossing of the English Channel.
    • September 27 » The Republic of China is recognized by the United States.

Day of death July 12, 1987

  • The temperature on July 12, 1987 was between 12.4 °C and 21.6 °C and averaged 17.1 °C. There was 13.2 hours of sunshine (80%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-northwest. Source: KNMI
  • Koningin Beatrix (Huis van Oranje-Nassau) was from April 30, 1980 till April 30, 2013 sovereign of the Netherlands (also known as Koninkrijk der Nederlanden)
  • In The Netherlands , there was from Tuesday, November 4, 1986 to Tuesday, November 7, 1989 the cabinet Lubbers II, with Drs. R.F.M. Lubbers (CDA) as prime minister.
  • In the year 1987: Source: Wikipedia
    • The Netherlands had about 14.6 million citizens.
    • April 21 » The Tamil Tigers are blamed for a car bomb that detonates in the Sri Lankan capital city of Colombo, killing 106 people.
    • June 8 » New Zealand's Labour government establishes a national nuclear-free zone under the New Zealand Nuclear Free Zone, Disarmament, and Arms Control Act 1987.
    • July 29 » British Prime Minister Margaret Thatcher and President of France François Mitterrand sign the agreement to build a tunnel under the English Channel (Eurotunnel).
    • August 19 » Hungerford massacre: In the United Kingdom, Michael Ryan kills sixteen people with a semi-automatic rifle and then commits suicide.
    • October 1 » The 5.9 Mw  Whittier Narrows earthquake shakes the San Gabriel Valley with a Mercalli intensity of VIII (Severe), killing eight and injuring 200.
    • October 7 » Sikh nationalists declare the independence of Khalistan from India; it is not internationally recognized.


Same birth/death day

Source: Wikipedia

Source: Wikipedia


About the surname Helmholt

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  • Check the information Open Archives has about Helmholt.
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The Family tree Weening publication was prepared by .contact the author
When copying data from this family tree, please include a reference to the origin:
Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I199781.php : accessed October 12, 2026), "Jan Helmholt (1902-1987)".