Family tree Calis, Laren » Johan Melchior Seijffert (1912-1964)

Personal data Johan Melchior Seijffert 


Household of Johan Melchior Seijffert

(1) He is married to Aaltje Slotboom.

They got married on October 30, 1937 at Hilversum, Noord-Holland, Nederland, he was 25 years old.


Child(ren):

  1. (Not public)


(2) He is married to (Not public).

Woonden Oud Loosdrechtsedijk 137, Loosdrecht.

They got married

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Timeline Johan Melchior Seijffert

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Ancestors (and descendant) of Johan Melchior Seijffert

Dirkje Zorn
1885-1974

Johan Melchior Seijffert
1912-1964

(1) 1937

Aaltje Slotboom
1911-1977

(Not public)
(2) 
(Not public)

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Historical events

Birthday April 22, 1912

  • The temperature on April 22, 1912 was between 7.6 °C and 20.8 °C and averaged 14.3 °C. There was 12.4 hours of sunshine (87%). The average windspeed was 4 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 1912: Source: Wikipedia
    • The Netherlands had about 6.0 million citizens.
    • February 25 » Marie-Adélaïde, the eldest of six daughters of Guillaume IV, becomes the first reigning Grand Duchess of Luxembourg.
    • February 29 » The Piedra Movediza (Moving Stone) of Tandil falls and breaks.
    • August 14 » U.S. Marines invade Nicaragua to support the U.S.-backed government installed there after José Santos Zelaya had resigned three years earlier.
    • September 4 » Albanian rebels succeed in their revolt when the Ottoman Empire agrees to fulfill their demands
    • October 3 » U.S. forces defeat Nicaraguan rebels at the Battle of Coyotepe Hill.
    • October 17 » Bulgaria, Greece and Serbia declare war on the Ottoman Empire, joining Montenegro in the First Balkan War.

Day of marriage October 30, 1937

  • The temperature on October 30, 1937 was between 6.6 °C and 15.9 °C and averaged 11.4 °C. There was 5.5 hours of sunshine (56%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southeast. 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.
    • May 27 » In California, the Golden Gate Bridge opens to pedestrian traffic, creating a vital link between San Francisco and Marin County, California.
    • July 5 » Spam, the luncheon meat, is introduced into the market by the Hormel Foods Corporation.
    • July 24 » Alabama drops rape charges against the "Scottsboro Boys".
    • July 29 » Tōngzhōu Incident: In Tōngzhōu, China, the East Hopei Army attacks Japanese troops and civilians.
    • December 21 » Snow White and the Seven Dwarfs, the world's first full-length animated feature, premieres at the Carthay Circle Theatre.
    • December 22 » The Lincoln Tunnel opens to traffic in New York City.

Day of death April 30, 1964

  • The temperature on April 30, 1964 was between 6.8 °C and 14.6 °C and averaged 10.2 °C. There was 6.6 hours of sunshine (45%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. 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 July 24, 1963 to April 14, 1965 the cabinet Marijnen, with Mr. V.G.M. Marijnen (KVP) as prime minister.
  • In the year 1964: Source: Wikipedia
    • The Netherlands had about 12.0 million citizens.
    • January 13 » In Manchester, New Hampshire, fourteen-year-old Pamela Mason is murdered. Edward Coolidge is tried and convicted of the crime, but the conviction is set aside by the landmark Fourth Amendment case Coolidge v. New Hampshire (1971).
    • June 5 » DSV Alvin is commissioned.
    • July 2 » Civil rights movement: U.S. President Lyndon B. Johnson signs the Civil Rights Act of 1964 meant to prohibit segregation in public places.
    • August 5 » Vietnam War: Operation Pierce Arrow: American aircraft from carriers USSTiconderoga and USSConstellation bomb North Vietnam in retaliation for strikes against U.S. destroyers in the Gulf of Tonkin.
    • September 4 » Scotland's Forth Road Bridge near Edinburgh officially opens.
    • September 21 » The North American XB-70 Valkyrie, the world's fastest bomber, makes its maiden flight from Palmdale, California.


Same birth/death day

Source: Wikipedia

Source: Wikipedia


About the surname Seijffert


The Family tree Calis, Laren publication was prepared by .contact the author
When copying data from this family tree, please include a reference to the origin:
Maria Vos-Blekemolen, "Family tree Calis, Laren", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-calis/I9081.php : accessed August 7, 2025), "Johan Melchior Seijffert (1912-1964)".