Wappocomo is a late 18th-century Georgian mansion and farm overlooking the South Branch Potomac River north of Romney, Hampshire County, West Virginia, USA.

The original section of the mansion at Wappocomo was built in 1774 by Nicholas Casey (1745–1833), using bricks that had been used as ballast to stabilize ships loading tobacco in the James River.

The original 1774 portion of the mansion is a square two-story Georgian-style structure, an architectural style prevalent in Virginia at the time of Wappocomo's construction.

[6][10] In 1748, Fairfax commissioned James Genn to survey the South Branch Potomac River lowlands for sale and lease, with lots ranging in size from 300 to 400 acres (120 to 160 ha).

[6][10] Prominent Hampshire County pioneer Peter Casey (1715–87) received the Wappocomo parcel, known as Lot Number 21 of the South Branch Survey, from Lord Fairfax.

[11][13][14] The bricks used in the construction of Casey's mansion were manufactured in England, and used as ballast to stabilize ships loading tobacco in the James River.

[13] During this time, the mansion was named Wappocomo, which was derived from the Native American toponym "Wappatomaka" for the South Branch Potomac River.

[23] After his death on January 25, 1847, his will, dated November 7, 1846, and probated February 22, 1847, devised Lot Number 21 including Wappocomo (referred to in the will as the Casey Tract) to his son Colonel Isaac Parsons (1814–62).

In a series of articles in the Virginia Argus and Hampshire Advertiser, he declared that Faulkner had originally offered his services at no cost; that he had been lauded publicly for his generosity in doing so without ever denying that he had been working pro bono; and that he was practicing "duplicity and deception" in trying to win a reputation in his district through "specious acts of munificence".

[32][33][34] Following its construction by Col. Parsons in 1861, the ballroom in the upper story of Wappocomo's stone addition served as the scene of many events and parties.

[35] During the American Civil War, Col. Parsons received permission from the Confederate States government to raise an independent company of mounted infantry to provide defense along the border.

[37] Parsons traveled to Richmond with a supply of cattle, and returned to his company's camp on the North River in Hampshire County around November 15, 1861.

[38] Accompanied by Lieutenant Blue and Adam Parrish, he traveled west along the Northwestern Turnpike to around Pleasant Dale, then followed a series of roads and paths until nighttime, when they reached Sugar Hollow two miles north of Romney.

[40] The three men traveled through the dark and rain to the nearby home of Frank Carter, where they ate and dried their clothes by the fire.

[41] Parsons and Blue continued east over Town Hill and reached George Thompson's residence on the Little Cacapon River, which had risen due to the previous night's rainfall.

[35] On April 26, 1862, acting Quartermaster Lt. F. H. Morse of the Union Army completed his death certificate, in which he noted Parsons' "very fine house near Romney.

[35] In 1972, the Baltimore and Ohio Railroad's South Branch line, located on the Wappocomo property, became part of the Chessie System.

Its principal depot is Wappocomo Station, located on the Wappocomo farm; the station consists of a ticket office housed in a red 1940 Baltimore and Ohio Railroad caboose, numbered C2507; the caboose is owned by the Chesapeake and Ohio Historical Society and leased by the Potomac Eagle Scenic Railroad.

[57][58] In October 2013, the first annual Chuck Parsons Memorial Bowling Tournament was held in his honor, with the proceeds benefitting the Hampshire County Parks and Recreation Department summer youth programs.

[57] The original 1774 portion of the mansion is a square two-story Georgian-style structure with a basement and attic, an architectural style prevalent in Virginia at the time of Wappocomo's construction.

[13] This part of the mansion is built of large weighted ballast bricks, with walls that measure 1 foot 6 inches (0.46 m) in depth, allowing for deep inset windows.

[35] The home's wooden sill plates and joists were sawed by hand and the "rot nails" used for their construction were manufactured in the blacksmith shop on the Wappocomo plantation.

The space around this large open fireplace within the mansion's basement formerly served as a kitchen, where most of the cooking and food preparation took place.

The large stone blocks used for the construction of the addition were quarried from the plantation's Mill Creek Mountain, a ridge located across the South Branch Potomac River to the west of the mansion.

[35] Wappocomo farm is located within the relatively flat floodplain of the South Branch Potomac River valley, to the north of Romney.

[65] Hanging Rocks, cliffs of stratified Oriskany sandstone and limestone layers, are located within a gap where the South Branch Potomac River cuts through Mill Creek Mountain approximately 3 miles (4.8 km) north of Wappocomo farm.

[67][68] Big Run, a tributary stream of the South Branch Potomac River, flows north bisecting the Wappocomo property, bordered by dense foliage.

[62][69] Shortly before it enters Wappocomo farm, Big Run flows alongside ledges of gray shale known to contain Chonetes and Camarotoechia fossils.

[70] A smaller unnamed stream flows through the front lawn of the house at Wappocomo before curving northwest toward its confluence with Big Run.

[62] Corn is the primary crop produced in Wappocomo's agricultural fields along the South Branch Potomac River, which consist of rich alluvial soils.