Descendants Hemerik-Broekhuizen-Huner-Koper-Barink » Helena Jacoba Heijkoop (1850-1937)

Personal data Helena Jacoba Heijkoop 


Household of Helena Jacoba Heijkoop

She is married to Johannes Sierag.

They got married on May 8, 1878 at Leiden, she was 28 years old.


Child(ren):

  5. Hendrik Daniel Sierag  1888-1960 
  6. Pieter Sierag  1889-1977 
  7. Sara Wilhelmina Sierag  1893-1960 

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Timeline Helena Jacoba Heijkoop

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Ancestors (and descendant) of Helena Jacoba Heijkoop


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Relationship Helena Jacoba Heijkoop

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Historical events

Birthday January 1, 1850

  • The temperature on January 1, 1850 was about 4.0 °C. Wind direction mainly northwest. Weather type: betrokken. Source: KNMI
  •  This page is only available in Dutch.
    De Republiek der Verenigde Nederlanden werd in 1794-1795 door de Fransen veroverd onder leiding van bevelhebber Charles Pichegru (geholpen door de Nederlander Herman Willem Daendels); de verovering werd vergemakkelijkt door het dichtvriezen van de Waterlinie; Willem V moest op 18 januari 1795 uitwijken naar Engeland (en van daaruit in 1801 naar Duitsland); de patriotten namen de macht over van de aristocratische regenten en proclameerden de Bataafsche Republiek; op 16 mei 1795 werd het Haags Verdrag gesloten, waarmee ons land een vazalstaat werd van Frankrijk; in 3.1796 kwam er een Nationale Vergadering; in 1798 pleegde Daendels een staatsgreep, die de unitarissen aan de macht bracht; er kwam een nieuwe grondwet, die een Vertegenwoordigend Lichaam (met een Eerste en Tweede Kamer) instelde en als regering een Directoire; in 1799 sloeg Daendels bij Castricum een Brits-Russische invasie af; in 1801 kwam er een nieuwe grondwet; bij de Vrede van Amiens (1802) kreeg ons land van Engeland zijn koloniën terug (behalve Ceylon); na de grondwetswijziging van 1805 kwam er een raadpensionaris als eenhoofdig gezag, namelijk Rutger Jan Schimmelpenninck (van 31 oktober 1761 tot 25 maart 1825).
  • In The Netherlands , there was from November 1, 1849 to April 19, 1853 the cabinet Thorbecke I, with Mr. J.R. Thorbecke (liberaal) as prime minister.
  • In the year 1850: Source: Wikipedia
    • The Netherlands had about 3.1 million citizens.
    • March 18 » American Express is founded by Henry Wells and William Fargo.
    • April 4 » Los Angeles is incorporated as a city.
    • May 15 » The Bloody Island massacre takes place in Lake County, California, in which a large number of Pomo Indians are slaughtered by a regiment of the United States Cavalry.
    • July 9 » Persian prophet Báb is executed in Tabriz, Persia.
    • September 9 » California is admitted as the thirty-first U.S. state.
    • November 24 » Danish troops defeat a Schleswig-Holstein force in the town of Lottorf, Schleswig-Holstein.

Day of marriage May 8, 1878

  • The temperature on May 8, 1878 was about 9.4 °C. There was 12 mm of rain. The air pressure was 5 kgf/m2 and came mainly from the east. The airpressure was 75 cm mercury. The atmospheric humidity was 90%. 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 November 3, 1877 to August 20, 1879 the cabinet Kappeijne van de Coppello, with Mr. J. Kappeijne van de Coppello (liberaal) as prime minister.
  • In the year 1878: Source: Wikipedia
    • The Netherlands had about 4.0 million citizens.
    • May 14 » The last witchcraft trial held in the United States begins in Salem, Massachusetts, after Lucretia Brown, an adherent of Christian Science, accused Daniel Spofford of attempting to harm her through his mental powers.
    • June 4 » Cyprus Convention: The Ottoman Empire cedes Cyprus to the United Kingdom but retains nominal title.
    • July 1 » Canada joins the Universal Postal Union.
    • July 13 » Treaty of Berlin: The European powers redraw the map of the Balkans. Serbia, Montenegro and Romania become completely independent of the Ottoman Empire.
    • December 18 » The Al-Thani family become the rulers of the state of Qatar.
    • December 31 » Karl Benz, working in Mannheim, Germany, filed for a patent on his first reliable two-stroke gas engine, and he was granted the patent in 1879.

Day of death January 28, 1937

  • The temperature on January 28, 1937 was between -7.9 °C and -4.5 °C and averaged -6.3 °C. The average windspeed was 5 Bft (very strong wind) 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 July 31, 1935 to June 24, 1937 the cabinet Colijn III, with Dr. H. Colijn (ARP) as prime minister.
  • In The Netherlands , there was from June 24, 1937 to July 25, 1939 the cabinet Colijn IV, with Dr. H. Colijn (ARP) as prime minister.
  • In the year 1937: Source: Wikipedia
    • The Netherlands had about 8.6 million citizens.
    • February 19 » Yekatit 12: During a public ceremony at the Viceregal Palace (the former Imperial residence) in Addis Ababa, Ethiopia, two Ethiopian nationalists of Eritrean origin attempt to kill viceroy Rodolfo Graziani with a number of grenades.
    • March 18 » The New London School explosion in New London, Texas, kills 300 people, mostly children.
    • March 21 » Ponce massacre: Nineteen people in Ponce, Puerto Rico are gunned down by police acting on orders of the US-appointed Governor, Blanton C. Winship.
    • May 26 » Walter Reuther and members of the United Auto Workers (UAW) clashed with Ford Motor Company security guards at the River Rouge Complex complex in Dearborn, Michigan, during the Battle of the Overpass.
    • July 24 » Alabama drops rape charges against the "Scottsboro Boys".
    • December 12 » Second Sino-Japanese War: USS Panay incident: Japanese aircraft bomb and sink U.S. gunboat USSPanay on the Yangtze river in China.

About the surname Heijkoop

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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/I33845.php : accessed January 16, 2026), "Helena Jacoba Heijkoop (1850-1937)".