He served as a justice of peace, member of the South Carolina General Assembly and a local commissioner.
His father, Daniel Huger Horry (1705-1763), was a prominent French Huguenot plantation owner who lived on the Santee River in South Carolina.
Daniel and his wife, Harriott Lucas Pinckney (1748-1830), whom he married in 1769, lived at Hampton Plantation, located north of present-day McClellanville, South Carolina.
Horry served as a member of the South Carolina General Assembly, justice of the peace, and a local commissioner.
[3] After the South Carolina Light Dragoons, a unit of the State Troops, was established in February 1779, he served as its first and only colonel.