Irish-born David Redick became a surveyor, lawyer and elected official in Washington County in western Pennsylvania. He was admitted to the bar in 1782.
At the state level he was a member of the Pennsylvania Supreme Executive Council 1786 and vice president (the equivalent of lieutenant-governor) of the state in 1788. As a member of Pennsylvania’s constitutional convention of 1790, he was a signer of that document. He became prothonotary of Washington County in 1794. As prothonotary and clerk of courts in Washington County, he participated in the Whiskey Rebellion.
Redick served very briefly as a University of the State of Pennsylvania trustee in an ex-officio capacity while he was vice president of the Supreme Executive Council.