Family tree Keizer » Leonardus Calff (1894-1944)

Personal data Leonardus Calff 


Household of Leonardus Calff

He is married to Martha Bertha Stoppelman.

They got married on May 6, 1920 at Amsterdam (Nh), he was 26 years old.


Child(ren):

  1. Johan Calff  1921-1942
  2. Alfred Calff  1922-1942
  3. Helene Calff  1925-1942


Notes about Leonardus Calff

Beroep: Drukker en uitgever
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Timeline Leonardus Calff

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Ancestors (and descendant) of Leonardus Calff

Machiel Calff
1827-1865
Klara (Klara Salomons - Clara) Polak (Salomons)
1814-1885
Joseph Calff
1855-1922

Leonardus Calff
1894-1944

1920

Martha Bertha Stoppelman
1891-1943

Johan Calff
1921-1942
Alfred Calff
1922-1942
Helene Calff
1925-1942

    Show complete ancestor table

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    Historical events

    Birthday April 2, 1894

    • The temperature on April 2, 1894 was about 9.7 °C. The airpressure was 76 cm mercury. The atmospheric humidity was 81%. Source: KNMI
    • Koningin Wilhelmina (Huis van Oranje-Nassau) was from 1890 till 1948 sovereign of the Netherlands (also known as Koninkrijk der Nederlanden)
    • Regentes Emma (Huis van Oranje-Nassau) was from 1890 till 1898 sovereign of the Netherlands (also known as Koninkrijk der Nederlanden)
    • In The Netherlands , there was from August 21, 1891 to May 9, 1894 the cabinet Van Tienhoven, with Mr. G. van Tienhoven (unie-liberaal) as prime minister.
    • In The Netherlands , there was from May 9, 1894 to July 27, 1897 the cabinet Roëll, with Jonkheer mr. J. Roëll (oud-liberaal) as prime minister.
    • In the year 1894: Source: Wikipedia
      • The Netherlands had about 5.1 million citizens.
      • March 25 » Coxey's Army, the first significant American protest march, departs Massillon, Ohio for Washington, D.C.
      • April 21 » Norway formally adopts the Krag–Jørgensen bolt-action rifle as the main arm of its armed forces, a weapon that would remain in service for almost 50 years.
      • June 28 » Labor Day becomes an official US holiday.
      • September 15 » First Sino-Japanese War: Japan defeats Qing dynasty China in the Battle of Pyongyang.
      • November 1 » Buffalo Bill, 15 of his Indians, and Annie Oakley were filmed by Thomas Edison in his Black Maria Studio in West Orange, New Jersey.
      • November 21 » Port Arthur, China, falls to the Japanese, a decisive victory of the First Sino-Japanese War; Japanese troops are accused of massacring the remaining inhabitants.

    Day of marriage May 6, 1920

    • The temperature on May 6, 1920 was between 7.7 °C and 14.3 °C and averaged 10.5 °C. There was 3.8 mm of rain. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southwest. 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 September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
    • In the year 1920: Source: Wikipedia
      • The Netherlands had about 6.8 million citizens.
      • January 10 » League of Nations Covenant enters into force. On January 16 the organization holds its first council meeting, in Paris.
      • January 13 » The Reichstag Bloodbath of January 13, 1920, the bloodiest demonstration in German history.
      • January 19 » The American Civil Liberties Union (ACLU) is founded.
      • July 11 » In the East Prussian plebiscite the local populace decides to remain with Weimar Germany.
      • August 16 » Ray Chapman of the Cleveland Indians is hit on the head by a fastball thrown by Carl Mays of the New York Yankees, and dies early the next day. Chapman was the second player to die from injuries sustained in a Major League Baseball game, the first being Doc Powers in 1909.
      • August 20 » The National Football League is organized as the American Professional Football Conference in Canton, Ohio

    Day of death March 31, 1944

    • The temperature on March 31, 1944 was between -2.9 °C and 8.2 °C and averaged 2.5 °C. There was 0.4 mm of rain during 0.1 hours. The average windspeed was 3 Bft (moderate breeze) 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 July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
    • In the year 1944: Source: Wikipedia
      • The Netherlands had about 9.1 million citizens.
      • February 15 » World War II: The Narva Offensive begins.
      • March 5 » World War II: The Red Army begins the Uman–Botoșani Offensive in the western Ukrainian SSR.
      • April 22 » World War II: Operation Persecution is initiated: Allied forces land in the Hollandia (currently known as Jayapura) area of New Guinea.
      • June 5 » World War II: More than 1,000 British bombers drop 5,000 tons of bombs on German gun batteries on the Normandy coast in preparation for D-Day.
      • August 22 » World War II: Holocaust of Kedros in Crete by German forces.
      • September 6 » World War II: The city of Ypres, Belgium is liberated by Allied forces.
    

    Same birth/death day

    Source: Wikipedia

    Source: Wikipedia


    About the surname Calff

    • View the information that Genealogie Online has about the surname Calff.
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    The Family tree Keizer publication was prepared by .contact the author
    When copying data from this family tree, please include a reference to the origin:
    Roelf Schrik, "Family tree Keizer", database, Genealogy Online (https://www.genealogieonline.nl/keizer-stamboom/I449.php : accessed February 2, 2026), "Leonardus Calff (1894-1944)".