Question: Chapel Hill is a historic plantation house purchased by  an American soldier best remembered as the wartime head of what?

Context paragraphs:
Carroll Place: Carroll Place, also known as Old Carroll Place, is a historic plantation house located near St. George, Dorchester County, South Carolina.  Research completed circa 2012 at the South Carolina Archives in Columbia S.C. shows the house was built circa 1780, and is a plain two-story, Georgian I-house dwelling.  It is sheathed in clapboard single house and rests upon low brick pillars.  It has a hip roofed verandah supported by six wooden posts.  Its builder was likely Thomas Ferguson or David Campbell.  In 2008 the house was donated to the Dorchester County Historical Society by current owners Fitzhugh Lee Sweatman Jr and his wife, Martha Westbury-Sweatman.  The Dorchester County Historical Society under took an extensive restoration of the Colonial Era Plantation House and when completed, re-designated the house as the Koger-Murray-Carroll house for three of its previous owners who served in the South Carolina General Assembly: Joseph Koger (married the daughter of David Campbell and inherited the house on her death), Soule Murray (purchased the house and land from Joseph Koger), and James Parsons Carroll (purchased the property circa 1850).  James Parsons Carroll also served in the South Carolina Court of Equity as a Chancellor and was a signer of the South Carolina Ordinance of Secession.  Circa 1974 the house was added to the National Historical Register of Places as the "Old Carroll Place" for which it had become known.  The last owner/occupants of the house were the late Fitzhugh Lee Sweatman Sr and his wife Eulalie Knight-Sweatman.  Circa 1970 Mr and Mrs. Sweatman Sr built a smaller one story house off to the side of the Plantation House.  Mr. Sweatman Sr died on the property in 1975.

Chapel Hill (Berryville, Virginia): Chapel Hill is a historic plantation house located near Berryville, Clarke County, Virginia.  The oldest sections of the main house dates to the mid-1820s and is in the Federal style.  They are the central two-story, six-bay section, which consists of two distinct gable-roofed blocks; and the two-story, three-bay section now at the southernmost end of the house.  The house was remodeled and enlarged in 1941 in the Colonial Revival style, after plans drawn up by George L. Howe, a Washington, DC architect.  Also on the property are the contributing stable, groom's house, frame bank barn, machine shed, corncrib, barn, chicken coop, and three small sheds.  The property was purchased by William J. Donovan (1883-1959) in 1938, who subsequently undertook the renovation and expansion of the main house.  Noted architect George Howe designed alterations and additions during 1938-1941.

Parlange Plantation House: The Parlange Plantation House is a historic plantation house at Louisiana Highway 1 and Louisiana Highway 78 in Pointe Coupee Parish, Louisiana.  Built in 1750, it is a classic example of a large French Colonial plantation house in the United States.  Exemplifying the style of the semi-tropical Louisiana river country house, the Parlange Plantation home is a two-story raised cottage.  The main floor is set on a brick basement with brick pillars to support the veranda of the second story.  The raised basement is of brick, manufactured by slaves on the plantation.  The walls, both inside and out, were plastered with a native mixture of mud, sand, Spanish moss and animal hair ("bousillage"), then painted.  The ground story and second floors contain seven service rooms, arranged in a double line.  The walls and ceiling throughout the house were constructed of close-fitting bald cypress planks.

Hampton Plantation: Hampton Plantation, also known as Hampton Plantation House and Hampton Plantation State Historic Site, is a historic plantation, now a state historic site, north of McClellanville, South Carolina.  The plantation was established in 1735, and its main house exhibits one of the earliest known examples in the United States of a temple front in domestic architecture.  It is also one of the state's finest examples of a wood frame Georgian plantation house.  It was declared a National Historic Landmark in 1970.

Orton Plantation: The Orton Plantation is a historic plantation house in the Smithville Township of Brunswick County, North Carolina, United States.  Located beside the Cape Fear River between Wilmington and Southport, Orton Plantation is considered to be a near-perfect example of Southern antebellum architecture.  Built in 1735 by the co-founder of Brunswick Town, the Orton Plantation house is one of the oldest structures in Brunswick County.  During its history Orton Plantation has been attacked by Native Americans, used as a military hospital, and been home to lawyers, physicians, military leaders, and a Colonial governor.  Although the home is privately owned and closed to the public, the Orton Plantation Gardens and family-owned chapel have become a tourist destination in Southeastern North Carolina, attracting thousands of visitors each year.  On April 11, 1973, the Orton Plantation was added to the National Register of Historic Places.

William J. Donovan: William Joseph ("Wild Bill") Donovan (January 1, 1883 – February 8, 1959) was an American soldier, lawyer, intelligence officer and diplomat.  Donovan is best remembered as the wartime head of the Office of Strategic Services (OSS), the precursor to the Central Intelligence Agency, during World War II.  He is also known as the "Father of American Intelligence" and the "Father of Central Intelligence".  "The Central Intelligence Agency regards Donovan as its founding father," according to journalist Evan Thomas in a 2011 "Vanity Fair" profile.  The lobby of CIA headquarters, in Langley, Virginia, now features a statue of Donovan.  Thomas observed that Donovan's "exploits are utterly improbable but by now well documented in declassified wartime records that portray a brave, noble, headlong, gleeful, sometimes outrageous pursuit of action and skulduggery."

Orange Grove Plantation: Orange Grove Plantation is a historic plantation house and national historic district located on Saint Helena Island near Frogmore, Beaufort County, South Carolina.  The district encompasses one contributing building and two contributing sites, and reflects the early-20th century influx of Northerners onto St. Helena Island.  The plantation was first recorded in 1753 when Peter Perry purchased 473 acres.  Perry owned 46 chattel slaves.  The plantation house, built about 1800, was in poor condition when Henry L. Bowles (1866-1932), a U.S. Representative from Massachusetts, bought the property in 1928.  He demolished it and built the present house in the same year.  The property also includes the tabby ruin of the kitchen, built about 1800, and a tabby-walled cemetery containing three early-19th century graves of the Fripp and Perry families.

Quinby Plantation House-Halidon Hill Plantation: Quinby Plantation House-Halidon Hill Plantation is a historic plantation house located near Huger, Berkeley County, South Carolina.  The house was built about 1800, and is a 2 1/2-story, five bay, frame Federal style plantation house.  It sits on a low brick foundation and has a gable roof.  In 1954, in order to save Quinby Plantation from destruction, the owners moved it approximately four miles to Halidon Hill Plantation.  Halidon Hill Plantation is associated with the lowcountry rice culture and was historically part of Middleburg Plantation.

Cuba Plantation: Cuba Plantation is a historic plantation house located in Faunsdale, Alabama.  It was built in 1850 by Andrew Pickens Calhoun as an overseer's house for this, his second plantation.  He added about 420 acres to Cuba Plantation, purchased from William Henry Tayloe, son of John Tayloe III of The Octagon House-called Adventure.  His primary plantation was the nearby Tulip Hill.  Andrew Calhoun was the son of John C. Calhoun, seventh Vice President of the United States, who frequented the Octagon House while in Washington, D.C. as Secretary of War and later an independent outlier of the anti-Jacksonian Whig Party, later realigning himself with the Democrats' policies.  It was sold in 1863 to Tristram Benjamin Bethea, who resided in Montgomery County, Alabama.  Originally a one-story structure, the house was later enlarged on the ground floor and a second story added by the Bethea family.  The house was added to the National Register of Historic Places on July 13, 1993, as a part of the Plantation Houses of the Alabama Canebrake and Their Associated Outbuildings Multiple Property Submission.

Sams Plantation Complex Tabby Ruins: Sams Plantation Complex Tabby Ruins is a historic plantation complex and archaeological site located at Frogmore, Beaufort County, South Carolina.  The site, possibly built upon and occupied well before 1783.  It includes the ruins and/or archaeological remains of at least 12 tabby structures.  They include the main plantation house, a rectangular enclosure consisting of tabby walls, a large tabby kitchen, and five tabby slave quarters.  Also on the property were a variety of tabby dependencies including a barn/stable, a smoke house or blade house, a well/dairy house, and a well.  The property also includes the Sams family cemetery and Episcopal chapel enclosed by high tabby walls.  Other structures include possibly an overseer’s house, a granary/mill, and a tabby cotton house.  During and subsequent to the American Civil War the Sams Tabby Complex was occupied by freedman.  Following the Civil War the plantation house was destroyed by hurricanes.

Supporting paragraphs: Chapel Hill (Berryville, Virginia) William J. Donovan
Answer: Office of Strategic Services