File:10489 Patton House, Fort Loudon - Franklin County, PA 2.jpg

English: Fort Loudoun (or Fort Loudon, after the modern spelling of the town) was a fort in colonial Pennsylvania, one of several forts in colonial America named after John Campbell, 4th Earl of Loudoun. The fort was built in 1756 during the French and Indian War by the Second Battalion of the Pennsylvania Regiment under Colonel John Armstrong, and served as a post on the Forbes Road during the Forbes expedition that successfully drove the French away from Fort Duquesne.

In 1765, following Pontiac's Rebellion, settlers upset with the resumption of trade with Native Americans forced the British garrison to evacuate the fort, part of an uprising known as the Black Boys Rebellion.

A replica of the fort was built on the original site in 1993.

The Patton House, though moved to a new location, was built sometime between 1765 and 1798 when it appeared on the US Direct Tax of 1798. The house measures 29 feet by 29 feet and features nine windows with six over six lights. The second story appears to be added a few years after the first story. The clapboards, a rear addition and fort porch were removed after the house was relocated to reveal log walls. The exterior was later covered with wooden siding at the direction of the Pennsylvania Historic Museum Commission. The downstairs interior had been modernized in the kitchen but the living room retained its logs. The second floor retained some original flooring and paneling. A new concrete basement was dug when the house was moved to its current location.