The Hayward–Hill House is a historic house located at 540 S. Main St. in Hillsboro, Illinois.
 The house was built circa 1850 for John Shaw Hayward, a local businessman and land speculator who founded the Hillsboro Academy.
 The two-story, "L"-shaped house has an Italianate design.
 A verandah, which is topped by a porch with a balustrade, runs along the front of the house.
 The low hip roof features a cornice with paired brackets along its edge.
 Cast iron lintels cover the house's tall, narrow arched windows.
 In 1904, prominent local attorney and financier L. V. Hill purchased the house, which his family owned until 1967.
Wakefield Dairy Complex is a historic commercial building associated with the Royall Mill and located at Wake Forest, Wake County, North Carolina.
 The complex was built in 1934, and consists of an 8,000 square foot, four-story, dairy barn with silos; a bull barn; and a calf barn.
 It was built to house John Sprunt Hill's Guernsey dairy herd.
The Alexander–Hill House, also known as the Alexander–Cannon–Hill House, is a property listed on the National Register of Historic Places, located in High Falls County Park near Seneca, South Carolina off of South Carolina Highway 183.
 Built in 1831 by Pleasant Alexander, the house was originally located on a plantation near Old Pickens, the government center of the Pickens District, which was created after the Pendleton District split into two smaller districts.
 It was moved to its current location in 1972.
John Sprunt Hill (March 17, 1869 – July 29, 1961) was a North Carolina lawyer, banker and philanthropist who played a fundamental role in the civic and social development of Durham, North Carolina, the expansion of the University of North Carolina at Chapel Hill and the development of rural credit unions in North Carolina during the first half of the 20th Century.
The Slaughter–Hill House also known as the Corrie Hill House or the Roger Dixon House, is a historic home located at Culpeper, Culpeper County, Virginia.
 The original section was built about 1775, and enlarged with a frame addition in the early 19th century, and further enlarged about 1835–1840.
 It is a two-story, "L"-plan, log and frame dwelling with a central-passage plan.
 During the 1820s.
 it was the residence of Congressman and diplomat John Pendleton.
John Y. Hill (August 14, 1799 - August 2, 1859) was an American builder, tailor, bricklayer, cattle herder, hotel operator, and state legislator in Kentucky.
 He was born in Shepherds Town, Virginia in 1799 and moved to Elizabethtown, Hardin County, Kentucky, in approximately 1818.
 He worked as a tailor from approximately 1818 and into the 1830s.
 He also worked as a bricklayer and builder from 1825 and into the 1840s.
 He also served in the Kentucky House of Representatives.
 In approximately 1825, he built the Hill House (later known as Brown Pusey House), a Federal-style building in Elizabethtown.
 In the 1840s, he began operating Hill House as a boarding house.
 Hill died of pneumonia in August 1859.
 His second wife, Rebecca Davis Stone Hill, continued to operate Hill House (sometimes referred to during her operation as "Aunt Beck Hill's Boarding House") until she died in 1882.
 General George Armstrong Custer lived at the house from 1871 to 1873.
The John Sprunt Hill House is a historic house at 900 S. Duke street in Durham, North Carolina, in the Morehead Hill Historic District.
 Built in 1911-1912, it was the home of John Sprunt Hill (1869–1961) and his wife Annie Watts Hill (died 1940), daughter of George Washington Watts, co-founder of the American Tobacco Company.
The North Carolina Collection is the largest collection of traditional library materials documenting a single state.
 It is part of the Louis Round Wilson Special Collections Library at the University of North Carolina at Chapel Hill.
 The origins of the collection began in 1844 with the creation of the North Carolina Historical Society.
 The collection formally came into existence after a donation from John Sprunt Hill in 1930 totaling $25,000.
 The collection includes The Thomas Wolfe Collection and The Sir Walter Raleigh Collection.
Durham is a city in the U.S. state of North Carolina.
 It is the county seat of Durham County.
How Hill House is a large, Edwardian manor house located in How Hill, an area in Ludham, Norfolk.
 The house is on the River Ant and is part of the Broads National Park.
 It was designed by the English architect Edward Boardman in 1903, who intended it to be his family's country retreat.
 The Boardman family owned the house until 1966 before its sale to Norfolk County Council, and then to Norwich Union.
 The house is currently owned by the Broads Authority who lease the building to the How Hill Trust.
 The house was designated a Grade II listed building in 1987.

Question: In which county is the John Sprunt Hill House located?
Answer: Durham County