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Margot Gayle and Carol Gayle

American inventor, engineer, designer and manufacturer. He trained as a watchmaker’s apprentice in Catskill, NY, worked as an engraver in Savannah, GA and again in Catskill. About 1830 he moved to New York City to promote his inventions. He secured many patents for various devices, including clocks, an eversharp pencil, a dry gas meter and a meter for measuring fluids...

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Gordon Campbell

American jewellers and silversmiths founded in Philadelphia in 1839, when James Emott Caldwell, a watchmaker from Poughkeepsie, opened a workshop and retail outlet on Chestnut Street. The company’s fourth Chestnut Street shop was the Widener Building, which it occupied for 87 years until it closed in ...