US Congressman. He was born one of three children at Hills Farm, near Drummondtown, in Accomack County, Virginia, to Thomas Bayly and his wife Ann Drummond Bayly on March 25, 1775. He was educated locally and later attended Washington Academy in Maryland, and attended and graduated from Princeton College (later Princeton University) in Princeton, New Jersey, in 1794. He then studied law and was admitted to the bar in 1796, and opened up his practice of law in his native Accomack County, Virginia. During this time he also engaged in planting. He then entered politics and was elected and served a term in the Virginia State House of Delegates from 1798 to 1801. He also served as a Member of the Virginia State Senate from 1801 to 1809. At the outbreak of the War of 1812, he put his political career on hold and served his country with the rank of Colonel in the United States Army. He then decided to run for a seat in the United States Congress and was elected. A Member of the Federalist Party, he then served Virginia's 12th District (Thirteenth Congress), in the United States House of Representatives from March 4, 1813, to March 3, 1815. He was not a Candidate for renomination in 1814. After his term in the United States Congress expired he was succeeded in office by United States Representative Burwell Bassett Jr. on March 4, 1815. After leaving the United States Congress he resumed his engaging in agricultural pursuits and his practice of law. He was then elected and served two more terms in the Virginia State of House of Delegates from 1819 to 1821, and again from 1826 to 1831. He lastly served as a Delegate to the Virginia Constitutional Convention from 1829 to 1830. After his time in public service, he again resumed his agricultural pursuits and his practice of law until his death. He passed away in Accomac, Accomack County, Virginia, on January 7, 1834, at the age of 58, and he was buried in the Mount Curtis Cemetery on his 'Mount Custis,' Estate near Accomac, Accomack County, Virginia. He was married to Margaret Pettit Bayly in 1802, and the couple had seven children together including United States Representative Thomas Henry Bayly (1810-1856).