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Robert 'Mack' McCormick was born in 1930.
Robert R. McCormick died on 1955-04-01.
Robert R. McCormick was born on 1880-07-30.
Robert Sanderson McCormick was born on 1849-07-26.
Robert Hall McCormick has written:
'The life and works of Robert McCormick including his invention of the reaper' -- subject(s): Harvesting machinery