The temperature on May 19, 1865 was about 15.0 °C. The air pressure was 7 kgf/m2 and came mainly from the north. The airpressure was 77 cm mercury. The atmospheric humidity was 60%. Source: KNMI
In The Netherlands , there was from February 1, 1862 to February 10, 1866 the cabinet Thorbecke II, with Mr. J.R. Thorbecke (liberaal) as prime minister.
April 9 » American Civil War: Robert E. Lee surrenders the Army of Northern Virginia (26,765 troops) to Ulysses S. Grant at Appomattox Court House, Virginia, effectively ending the war.
May 1 » The Empire of Brazil, Argentina, and Uruguay sign the Treaty of the Triple Alliance.
May 25 » In Mobile, Alabama, around 300 people are killed when an ordnance depot explodes.
July 14 » First ascent of the Matterhorn by Edward Whymper and party, four of whom die on the descent.
December 17 » First performance of the Unfinished Symphony by Franz Schubert.
December 24 » Jonathan Shank and Barry Ownby form The Ku Klux Klan.
Day of marriage June 2, 1888
The temperature on June 2, 1888 was about 11.6 °C. The airpressure was 77 cm mercury. The atmospheric humidity was 62%. 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.
In The Netherlands , there was from April 21, 1888 to August 21, 1891 the cabinet Mackay, with Mr. A. baron Mackay (AR) as prime minister.
January 13 » The National Geographic Society is founded in Washington, D.C.
March 23 » In England, The Football League, the world's oldest professional association football league, meets for the first time.
May 12 » In Southeast Asia, the North Borneo Chartered Company's territories become the British protectorate of North Borneo.
August 14 » An audio recording of English composer Arthur Sullivan's "The Lost Chord", one of the first recordings of music ever made, is played during a press conference introducing Thomas Edison's phonograph in London, England.
September 22 » The first issue of National Geographic Magazine is published.
October 30 » The Rudd Concession is granted by Matabeleland to agents of Cecil Rhodes.
Day of death June 2, 1949
The temperature on June 2, 1949 was between 9.1 °C and 18.0 °C and averaged 13.4 °C. There was 7.6 hours of sunshine (46%). The average windspeed was 2 Bft (weak wind) and was prevailing from the northwest. Source: KNMI
From August 7, 1948 till March 15, 1951 the Netherlands had a cabinet Drees - Van Schaik with the prime ministers Dr. W. Drees (PvdA) and Mr. J.R.H. van Schaik (KVP).
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I197186.php : accessed February 13, 2026), "Hendrik Mertens (1865-1949)".
Copy warning
Genealogical publications are copyright protected. Although data is often retrieved from public archives, the searching, interpreting, collecting, selecting and sorting of the data results in a unique product. Copyright protected work may not simply be copied or republished.
Please stick to the following rules
Request permission to copy data or at least inform the author, chances are that the author gives permission, often the contact also leads to more exchange of data.
Do not use this data until you have checked it, preferably at the source (the archives).
State from whom you have copied the data and ideally also his/her original source.