John Ross Porter

1957-1997

1935-1980

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1936-2013

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1907-UNKNOWN

1909-UNKNOWN

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1908-UNKNOWN

1922-1999

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1911-UNKNOWN

1917-1983

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1915-1974

-UNKNOWN

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Abt 1954-2015

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1918-1991

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1882-1965

1883-1966