Richard Hegel (Hegel, Richard)

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  Carriages from New Haven: New Haven's Nineteenth-Century Carriage Industry
  by Richard Hegel
  Hardcover, Archon Books, ISBN 0208014349 (0-208-01434-9)
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  New Haven: An Illustrated History
  by New Haven Colony Historical Society, Richard Hegel, Floyd M. Shumway
  Hardcover, Windsor Publications, ISBN 0897810333 (0-89781-033-3)
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  Nineteenth-Century Historians of New Haven
  by Richard Hegel
  Hardcover, Archon Books, ISBN 0208012621 (0-208-01262-1)