Helen
GRISWOLD
Parents & Family of Helen GRISWOLD
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Born: May 1, 1931 in Vancouver, British Columbia, Canada
Spouse(s)/Partner(s) and Child(ren):
Helen married John GRAY . The couple had (at least) 1 child.
John GRAY was born April 23, 1921 in Vancouver, British Columbia, Canada. John died june 29, 2020 in Marysville, Washington, USA. John was the child of Robert K GRAY and Elizabeth Mclean WALLACE.
Helen GRISWOLD died 15 November 1999 in Bellingham, Washington, USA.
Details of the family tree of Helen appear below.
Spouse & Children of Helen GRISWOLD
John GRAYMarriage place:
John GRAY was the child of Robert K GRAY and Elizabeth Mclean WALLACE
Children of John GRAY and Helen GRISWOLD
Died: ,
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Birth — 1931May 1, 1931
Vancouver, British Columbia, Canada
1934 - The metal beverage can is invented (American Can Co., United States) 1940 - April - 1st electron microscope demonstrated (RCA), Philadelphia, Pennsylvania, USA The microwave oven was invented accidentally in 1945 by Percy Spencer, a Raytheon engineer. While testing a magnetron, he noticed microwaves melted a candy bar in his pocket. Experimenting further, he discovered microwaves could cook food quickly. Raytheon patented the process, and by 1947, they built the first commercial microwave oven, called the 'Radarange.' Initially used in commercial settings, microwaves becomes affordable for home use by the 1960s and 1970s, revolutionizing cooking. The cell phone was invented by Martin Cooper of Motorola. On April 3, 1973, he made the first handheld mobile phone call with the Motorola DynaTAC. This device weighed 2.5 pounds and was 10 inches long, offering 30 minutes of talk time and requiring 10 hours to charge. The first commercial cell phone was released in 1983, revolutionizing communication and leading to the modern smartphones we use today.
1981 - June 5 - First reported case of AIDS (Acquired Immune Deficiency Syndrome) 1989 - The World Wide Web is invented at CERN (Tim Berners-Lee, UK)
Death — 199915 November 1999
Bellingham, Washington, USA
She died at the age of 68.
Record added: 12/30/2022 6:05:09 PM
Last updated: 8/4/2025 8:12:15 PM
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