An Irish-born merchant, Darraugh was a local businessman. He with others founded The Bank of Pittsburgh. Darraugh was Burgess of the Borough of Pittsburgh when it became a City. After Mayor Denny refused a second one-year term, Darraugh accepted the position. He remained in office until 1825 when a new law forbade bank directors from holding executive office. During his tenure, Darraughhad continued to serve as President of the Bank of Pittsburgh.
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