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John Mancewicz 1906 - 1970

John Mancewicz of Chicago, Cook County, Illinois was born on March 6, 1906, and died at age 64 years old in December 1970.

John Mancewicz

Chicago, Cook County, Illinois 60606

March 6, 1906

December 1970

Male

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John Mancewicz John Mancewicz (1906 - 1970)

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John Mancewicz's History: 1906 - 1970

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03/6

1906

Birthday

March 6, 1906

Birthdate

Unknown

Birthplace

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12/dd

1970

Death

December 1970

Death date

Unknown
Cause of death

Unknown
Death location

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John Mancewicz lived 11 years shorter than the average family member when died at the age of 64.

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John Mancewicz lived 11 years shorter than the average family member when died at the age of 64.

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Did you know?

In 1906, in the year that John Mancewicz was born, English biochemist Frederick Hopkins concluded that vitamins are essential to the human body and that a lack of vitamins caused scurvy and rickets. Scurvy and rickets were both huge problems in sailors that were at sea for extended time and the addition of vitamin C, vitamin D, and calcium in their diets helped eradicate the problem.

Did you know?

In 1935, by the time he was 29 years old, the BOI's name (the Bureau of Investigation) was changed to the FBI (Federal Bureau of Investigation) and it officially became a separate agency with the Department of Justice. J. Edgar Hoover, the Chief of the BOI, continued in his office and became the first Director of the FBI. The FBI's responsibility is to "detect and prosecute crimes against the United States".

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