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 5 » A hydrogen bomb known as the Tybee Bomb is lost by the US Air Force off the coast of Savannah, Georgia, never to be recovered.
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 26 » The United States Army launches Explorer 3.
May 27 » First flight of the McDonnell Douglas F-4 Phantom II.
November 25 » French Sudan gains autonomy as a self-governing member of the French Community.
December 1 » The Our Lady of the Angels School fire in Chicago kills 92 children and three nuns.
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 27, 2026), "Margaret Wiltsie (1697-1958)".
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