Officer in British army (1757-75); served in various parts of America (from 1767). Met with discrimination from superiors on account of his sympathy for the American rebels. Traveled to England and sued General Gage for damages (1775-76). Petitioned American commissioners (August 1778). Returned to America and offered services to U.S. Congress. Auditor for the Western district of the Continental Army (1779). Settled in Pittsburgh, where he became a prominent civic leader and Republican politician.
Born in bishopric of Durham. Married Sarah Smith. Fowler’s brother George assisted him in his struggles with the British army and may later have joined him in Pittsburgh.