Family tree Eilander » Janna Potkamp (1907-1964)

Personal data Janna Potkamp 


Household of Janna Potkamp

She is married to Jan Leidekker.

They got married on July 29, 1937, she was 29 years old.

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Historical events

  • The temperature on November 19, 1907 was between 4.2 °C and 8.8 °C and averaged 6.3 °C. The average windspeed was 2 Bft (weak wind) 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 August 17, 1905 to February 11, 1908 the cabinet De Meester, with Mr. Th. de Meester (unie-liberaal) as prime minister.
  • In the year 1907: Source: Wikipedia
    • The Netherlands had about 5.6 million citizens.
    • January 14 » An earthquake in Kingston, Jamaica kills more than 1,000 people.
    • October 22 » A run on the stock of the Knickerbocker Trust Company sets events in motion that will spark the Panic of 1907.
    • November 9 » The Cullinan Diamond is presented to King Edward VII on his birthday.
    • December 11 » The New Zealand Parliament Buildings are almost completely destroyed by fire.
    • December 19 » Two hundred thirty-nine coal miners die in the Darr Mine Disaster in Jacobs Creek, Pennsylvania.
    • December 21 » The Chilean Army commits a massacre of at least 2,000 striking saltpeter miners in Iquique, Chile.
  • The temperature on October 8, 1964 was between 6.9 °C and 13.4 °C and averaged 9.9 °C. There was 2.7 mm of rain during 2.8 hours. There was 4.1 hours of sunshine (37%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the 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 8 » President Lyndon B. Johnson declares a "War on Poverty" in the United States.
    • March 31 » Brazilian General Olímpio Mourão Filho orders his troops to move towards Rio de Janeiro, beginning the coup d'état.
    • May 2 » First ascent of Shishapangma, the fourteenth highest mountain in the world and the lowest of the Eight-thousanders.
    • June 28 » Malcolm X forms the Organization of Afro-American Unity.
    • August 7 » Vietnam War: The U.S. Congress passes the Gulf of Tonkin Resolution giving U.S. President Lyndon B. Johnson broad war powers to deal with North Vietnamese attacks on American forces.
    • November 3 » Lyndon B. Johnson is elected to a full term as U.S. president, winning 61% of the vote and 44 states, while Washington D.C. residents are able to vote in a presidential election for the first time, casting the majority of their votes for Lyndon Johnson.
  • The temperature on October 12, 1964 was between 2.9 °C and 10.3 °C and averaged 6.5 °C. There was 3.6 hours of sunshine (33%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south. 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 28 » An unarmed United States Air Force T-39 Sabreliner on a training mission is shot down over Erfurt, East Germany, by a Soviet MiG-19.
    • February 27 » The Government of Italy asks for help to keep the Leaning Tower of Pisa from toppling over.
    • August 13 » Peter Allen and Gwynne Evans are hanged for the murder of John Alan West becoming the last people executed in the United Kingdom.
    • September 25 » The Mozambican War of Independence against Portugal begins.
    • November 3 » Lyndon B. Johnson is elected to a full term as U.S. president, winning 61% of the vote and 44 states, while Washington D.C. residents are able to vote in a presidential election for the first time, casting the majority of their votes for Lyndon Johnson.
    • December 22 » The first test flight of the SR-71 (Blackbird) takes place at Air Force Plant 42 in Palmdale, California, United States.


Same birth/death day

Source: Wikipedia

Source: Wikipedia


About the surname Potkamp

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The Family tree Eilander publication was prepared by .contact the author
When copying data from this family tree, please include a reference to the origin:
P. Heres, "Family tree Eilander", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eilander/I1097396006.php : accessed February 22, 2026), "Janna Potkamp (1907-1964)".