Stadsarchief Rotterdam te Rotterdam, BS Geboorte Archief van de gemeente Rozenburg, Rozenburg, archief 5039, inventarisnummer 226, 1887, Index op het geboorteregister van de gemeente Rozenburg, 1880-1889, aktenummer 75
Het Utrechts Archief te Utrecht, BS Overlijden Burgerlijke Stand van de gemeenten in de provincie Utrecht 1951-1960, Zeist, archief 1221-1, inventarisnummer 2144, 13-10-1952, -, aktenummer 454
The temperature on November 30, 1887 was about 5.7 °C. There was 2 mm of rain. The air pressure was 9 kgf/m2 and came mainly from the west-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 94%. Source: KNMI
In The Netherlands , there was from April 23, 1884 to April 21, 1888 the cabinet Heemskerk, with Mr. J. Heemskerk Azn. (conservatief) as prime minister.
June 8 » Herman Hollerith applies for US patent #395,781 for the 'Art of Compiling Statistics', which was his punched card calculator.
June 18 » The Reinsurance Treaty between Germany and Russia is signed.
July 6 » David Kalākaua, monarch of the Kingdom of Hawaii, is forced to sign the Bayonet Constitution, which transfers much of the king's authority to the Legislature of the Kingdom of Hawaii.
July 26 » Publication of the Unua Libro, founding the Esperanto movement.
November 9 » The United States receives rights to Pearl Harbor, Hawaii.
November 13 » Bloody Sunday clashes in central London.
Day of marriage December 20, 1923
The temperature on December 20, 1923 was between -2.3 °C and 2.4 °C and averaged 0.4 °C. There was 0.9 mm of rain. There was 3.2 hours of sunshine (41%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the northwest. Source: KNMI
In The Netherlands , there was from September 19, 1922 to August 4, 1925 the cabinet Ruys de Beerenbrouck II, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
January 9 » Juan de la Cierva makes the first autogyro flight.
July 1 » The Parliament of Canada suspends all Chinese immigration.
July 24 » The Treaty of Lausanne, settling the boundaries of modern Turkey, is signed in Switzerland by Greece, Bulgaria and other countries that fought in World War I.
August 2 » Vice President Calvin Coolidge becomes U.S. President upon the death of President Warren G. Harding.
August 16 » The United Kingdom gives the name "Ross Dependency" to part of its claimed Antarctic territory and makes the Governor-General of the Dominion of New Zealand its administrator.
September 12 » Southern Rhodesia, today called Zimbabwe, is annexed by the United Kingdom.
Day of death October 12, 1952
The temperature on October 12, 1952 was between -1.8 °C and 13.4 °C and averaged 4.6 °C. There was 7.5 hours of sunshine (69%). The almost cloudless was. The average windspeed was 2 Bft (weak wind) and was prevailing from the east. Source: KNMI
When copying data from this family tree, please include a reference to the origin: Gert Jonker, "Family tree Jonker", database, Genealogy Online (https://www.genealogieonline.nl/jonker_stamboom/I12178.php : accessed February 20, 2026), "Jan Rouwenhorst (1887-1952)".
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