The temperature on March 12, 1958 was between -7.6 °C and 3.3 °C and averaged -2.1 °C. There was 4.3 hours of sunshine (37%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southeast. Source: KNMI
February 3 » Founding of the Benelux Economic Union, creating a testing ground for a later European Economic Community.
February 21 » The CND symbol, aka peace symbol, commissioned by the Direct Action Committee in protest against the Atomic Weapons Research Establishment, is designed and completed by Gerald Holtom.
March 19 » The Monarch Underwear Company fire leaves 24 dead and 15 injured.
March 26 » The African Regroupment Party is launched at a meeting in Paris.
May 22 » The 1958 riots in Ceylon become a watershed in the race relations of various ethnic communities of Sri Lanka. The total deaths is estimated at 300, mostly Tamils.
November 12 » A team of rock climbers led by Warren Harding completes the first ascent of The Nose on El Capitan in Yosemite Valley.
When copying data from this family tree, please include a reference to the origin: Keith Mann Spencer, "Mann Spencer Tree", database, Genealogy Online (https://www.genealogieonline.nl/mann-spencer-tree/P1774.php : accessed January 26, 2026), "Margaret Wiltsie (1697-1958)".
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.