David Bradford (1762–1808) was a successful lawyer and deputy attorney-general for Washington County, Pennsylvania in the late 18th century. He was infamous for his association with the Whiskey Rebellion, and his fictionalized escape to the Spanish-owned territory of West Florida (modern-day Louisiana) with soldiers at his tail. He was later pardoned by President John Adams for his actions. Today, his family's home in Washington, Pennsylvania is a national landmark and museum.
Throughout the early 18th century, what is now Washington County was claimed by both Virginia and Pennsylvania. It wasn't until March 28, 1781, the drawing of the Mason–Dixon line officially gave this land to Pennsylvania. Washington County was erected out of Westmoreland County at that time, and Washington, the county seat, was laid out by David Hoge later that same year. The following year, 1782, David Bradford, who was born in Maryland about 1760, came to town. Court records indicate that in April 1782 he was the sixth attorney to be admitted to the Washington County Bar Association. A brilliant young lawyer, he quickly established a very successful practice, and by 1783 he had been appointed deputy attorney-general for Washington County.
David Bradford had important family connections in town. One of his sisters, Agnes, had married John McDowell, a prominent local attorney; another sister, Jane, had married Col. James Allison, a lawyer who had settled in the Chartiers Valley in 1774. Both McDowell and Allison were elders in the Rev. John McMillan's Chartiers Church, and they also were among the first trustees of both Canonsburg and Washington Academies. David Bradford joined his brothers-in-law as a trustee of Washington College (now Washington & Jefferson College) and was appointed a member of the building committee. He was instrumental in building McMillan Hall at Washington College, which is one of the oldest surviving educational buildings in the nation and is listed on the National Register of Historic Places.