Mary Isabel
MACKEY
(b.
21 January 1920
,
Sudbury, Ontario, Canada
d.
3 April 1982
,
Orange, California, USA
)
Age: 63
Cause of Death: Heart Attack
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MACKEY Family Tree – Connecting the Past to the Present!
Mary Isabel MACKEY was born 21 January 1920 in Sudbury, Ontario, Canada
Mary Isabel MACKEY was the child of John Joseph MACKEY and Marie Alice LEFEBVRE and the grandchild of: (paternal) Richard MACKEY and Catherine REARDON (maternal) Arthur Pierre LEFEBVRE and Zepherine MASSYMary Isabel MACKEY died 3 April 1982 in Orange, California, USA.
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Discovering the Ancestry of Mary Isabel MACKEY: Events, Photos & Historical Records
1920 Birth 21 January 1920
Sudbury, Ontario, 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)
1982 Death 3 April 1982
Orange, California, USA
She died at the age of 62.
Added: 7/9/2023 11:51:38 PM
- Updated: 8/15/2025 6:18:22 PM
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