John Robert Gregg

Irish inventor

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Notable American people in academia

Gender:Male, Born in:Years 1850 to 1899

Notable American businesspeople

Gender:Male, Born in:Years 1850 to 1899

Notable American people in journalism

Gender:Male, Born in:Years 1850 to 1899

By work and/or country

Notable American Teachers

Gender:Male, Born in:Years 1850 to 1899

Notable American Inventors

Gender:Male, Born in:Years 1850 to 1899

Notable American Journalists

Gender:Male, Born in:Years 1850 to 1899