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Roy Callahan 1890 - 1975

Roy Callahan of Laguna Niguel, Orange County, California was born on September 29, 1890, and died at age 84 years old in July 1975.
Roy Callahan
Laguna Niguel, Orange County, California 92677
September 29, 1890
July 1975
Male
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Roy Callahan's History: 1890 - 1975

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  • 09/29
    1890

    Birthday

    September 29, 1890
    Birthdate
    Unknown
    Birthplace
  • 07/dd
    1975

    Death

    July 1975
    Death date
    Unknown
    Cause of death
    Unknown
    Death location
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  • Did you know?
    Roy Callahan lived 11 years longer than the average family member when died at the age of 84.
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Did you know?
In 1890, in the year that Roy Callahan was born, on June 1st, the U.S. Census Bureau started tabulating census returns with punch cards. Herman Hollerith's "tabulating machine" used punch cards to more quickly compute census information, taking the time to get census results from 8 years in 1880 to 6 years for the 1890 census. Hollerith's company eventually became IBM.
Did you know?
In 1907, Roy was 17 years old when radiometric dating, a recently discovered technology that could date rocks, found that the earth was 2.2 billion years old which was dramatically older than previously thought. Later refinements and advancements in science would date the age of the earth at over 4.5 billion years.
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Roy Callahan's Family Tree & Friends

Roy Callahan's Family Tree

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Roy's Friends

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 Followers & Sources

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Other Biographies

Other Roy Callahan Biographies

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