Family tree Leemborg » August Jan Marinus Koelman (1912-)

Personal data August Jan Marinus Koelman 


Household of August Jan Marinus Koelman

He is married to Jacoba Johanna Christina van der Werff.

They got married on December 2, 1959 at Haarlem (Nh), he was 47 years old.

Do you have supplementary information, corrections or questions with regards to August Jan Marinus Koelman?
The author of this publication would love to hear from you!


With Quick Search you can search by name, first name followed by a last name. You type in a few letters (at least 3) and a list of personal names within this publication will immediately appear. The more characters you enter the more specific the results. Click on a person's name to go to that person's page.

  • You can enter text in lowercase or uppercase.
  • If you are not sure about the first name or exact spelling, you can use an asterisk (*). Example: "*ornelis de b*r" finds both "cornelis de boer" and "kornelis de buur".
  • It is not possible to enter charachters outside the standard alphabet (so no diacritic characters like ö and é).

The data shown has no sources.

Historical events

  • The temperature on August 9, 1912 was between 8.5 °C and 17.4 °C and averaged 13.5 °C. There was 24.4 mm of rain. There was 1.4 hours of sunshine (9%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the 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 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.
    • March 5 » Italo-Turkish War: Italian forces are the first to use airships for military purposes, employing them for reconnaissance behind Turkish lines.
    • April 16 » Harriet Quimby becomes the first woman to fly an airplane across the English Channel.
    • October 17 » Bulgaria, Greece and Serbia declare war on the Ottoman Empire, joining Montenegro in the First Balkan War.
    • November 2 » Bulgaria defeats the Ottoman Empire in the Battle of Lule Burgas, the bloodiest battle of the First Balkan War, which opens her way to Constantinople.
    • November 12 » King George I of Greece makes a triumphal entry into Thessaloniki after its liberation from 482 years of Ottoman rule.
    • November 28 » Albania declares its independence from the Ottoman Empire.


Same birth/death day

Source: Wikipedia


About the surname Koelman

  • View the information that Genealogie Online has about the surname Koelman.
  • Check the information Open Archives has about Koelman.
  • Check the Wie (onder)zoekt wie? register to see who is (re)searching Koelman.

When copying data from this family tree, please include a reference to the origin:
Roelf Schrik, "Family tree Leemborg", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-leemborg/I260.php : accessed February 21, 2026), "August Jan Marinus Koelman (1912-)".