Question: Where is the company that used  Leavitt Farm as headquarters and museum facility located 

full_context: Document 1: Cobourg Car Works: The Cobourg Car Works, also known as the Crossen Car Works, was an early railway car and streetcar builder based in Cobourg, Ontario. The company was split off from the Ontario Foundry in 1873 by James Crossen Jr., the foundry's owner. When James died in 1890, control of the company passed to his children, who renamed it as the Crossen Car Manufacturing Company. Supplying almost all of the major Canadian railways, as well as many local regional lines, the Crossen works because the largest car company in Canada. The move to all-steel constructed and CPR's decision to open their own works led to a rapid downturn in business, and the company closed in 1913.
Document 2: E. F. Hodgson Company: The E. F. Hodgson Company of Dover, Massachusetts, was one of a number of companies who used specialty mail-order catalogs, to advertise and sell sectional and ready-cut houses. From a small New England town, the Hodgson Company competed with economic giants such as Sears Roebuck and Montgomery Ward, to attract the attention of a growing America in the 1890s. Using the railroad to access its market, the specialty house mail-order catalog company competed all over the United States. There is still a good argument for the theory that the Hodgson Company was in the market before Sears, and equaled them in production. But even so, Hodgson became better known outside of the United States in such places as Belgium, Italy, France, Newfoundland, and Jerusalem. From 1892 to 1944, the Hodgson Company was arguably the most important economic force of the simple agricultural community of Dover.
Document 3: Yellow Coach Manufacturing Company: The Yellow Coach Manufacturing Company (later Yellow Truck & Coach Manufacturing Company, informally Yellow Coach) was an early manufacturer of passenger buses in the United States. It was founded in Chicago as a subsidiary of the Yellow Cab Company in 1923 by John D. Hertz. General Motors purchased a majority stake in 1925, changing its name to 'Yellow Truck and Coach Manufacturing Company. They then bought the company outright in 1943 merging it into their GM Truck Division to form GM Truck & Coach Division. During its twenty-year existence, Yellow Coach built transit buses, electric-powered trolley buses, and parlor coaches.
Document 4: Evan F. Ellis Farmhouse: The Evan F. Ellis Farmhouse is an historic residence located north of Bussey, Iowa, United States. Evan, his wife Bertha, and their two daughters moved from Illinois and settled on the 120 acre farm they bought in Marion County, Iowa in 1909. He built this Sears, Roebuck & Co. "Honor Bilt Modern Homes" pre-cut house in 1913. It was unusual for such a house to be built in a rural area because all the parts would have to be transported a longer distance. The two-story frame house features a full-length front porch, projecting wall dormers, and it is capped with a hipped roof. After Evan's (1949) and Bertha's (1959) deaths, their daughter Mary continued to live in the house and run the farm until her death in 1974. While the family continued to own the farm, the house was rented to tenants until 1983 when Bonnie Vanderlinden Noah, Evan and Bertha's granddaughter, and her husband Jack began restoring the house for them to live in. The house was listed on the National Register of Historic Places in 1985.
Document 5: Stonyfield Farm (Wilton, New Hampshire): Stonyfield Farm, also known as the Ebenezer Barrett Farm, is a historic farm on Barrett Hill Road in Wilton, New Hampshire. The farm consists of 159 acre of land (which extends into neighboring Lyndeborough), which includes one major cluster of farm buildings, including an 1803 Federal style brick farmhouse, built by the land's first settler, Ebenezer Barrett. The farm was worked by Barrett and two generations of descendants during the 19th century, and became gentleman's farm in the early 20th century. The farm complex includes a 19th-century barn, a garage which was added c. 1920, and a c. 1927 greenhouse which was moved to the farm c. 1950. The property also includes a portion of Old Coach Road, a formerly public right-of-way, lined with stone walls, that was a significant north-south route. The property was leased in 1978 to the Rural Education Center, a non-profit agricultural education organization. The center was run by Samuel Kaymen, and it is here that the yogurt maker Stonyfield Farm was founded.
Document 6: Abbot-Downing Company: Abbot-Downing Company was a coach and carriage builder in Concord, New Hampshire, which became known throughout the United States for its products — in particular the first Concord coach.
Document 7: Plymouth Cordage Company: The Plymouth Cordage Company was a rope making company located in Plymouth, Massachusetts, USA. The company, founded in 1824, had a large factory located on the Plymouth waterfront. By the late 19th century, the Plymouth Cordage Company had become the largest manufacturer of rope and twine in the world. The company specialized in ship rigging, and was chosen among other competitors in the early 1900s to manufacture the rope used on the USS Constitution. The company's twine, Plymouth binder twine, popular among farmers, was the inspiration for the naming of the "Plymouth" brand of automobiles first produced in 1928.
Document 8: Carpenter Homestead: The Carpenter Homestead is a historic colonial American house and farm at 80 Walnut Street in Seekonk, Massachusetts. Also known as Osamequin Farm, this 166 acre property includes a farmhouse and outbuildings whose construction history begins c. 1720. The farmland historically associated with the property includes 113 acre in Seekonk and 53 acre in Rehoboth. The main house, now a 2-1/2 story wood frame structure with a gable-over-hip roof and central chimney, was begun c. 1720, underwent numerous alterations and expansions, and was given a historically sensitive restoration in the 1940s. The core portion of the main barn dates to the same time, with numerous additions in the intervening centuries, and also underwent restoration work in the 1940s. The property was under continuous ownership by the Carpenter family from its construction until 1939, and is one of Seekonk's oldest houses.
Document 9: Wilder Homestead: Wilder Homestead, also known as the Boyhood Home of Almanzo Wilder, is a historic home and farmstead near Malone in Franklin County, New York. The farmhouse was built in 1843, and is a two-story, Greek Revival style frame dwelling. The front facade features a small porch supported by square columns. It has a 1 1/2-story rear block with a small colonnaded portico. The property includes eight reconstructed outbuildings including a visitor's center (1989), corn crib (1989), three barns (1995, 1997, 1999), picnic pavilion (1998), rest rooms (1999), and pump house (2002). The Wilder family occupied the property until about 1875. The property is operated by the Almanzo & Laura Ingalls Wilder Association as an interactive educational center, museum and working farm as in the time of Almanzo Wilder's childhood as depicted in the Laura Ingalls Wilder book "Farmer Boy".
Document 10: Abbott-Detroit: The Abbott-Detroit was an American luxury automobile manufactured between 1909 and 1919. It was considered powerful and well-designed, and had a Continental engine. Production of the auto began in Detroit, Michigan and was moved to Cleveland, Ohio in 1916 at which time the automobile name was shortened to Abbott. The cars were guaranteed for life by 1913, when electric lighting and starting had been standardized.
Document 11: Wheeler Family Farmstead: The Wheeler Family Farmstead is a historic farm complex at 817 South Main Street in Great Barrington, Massachusetts. The farmhouse has elements dating to the 1730s, including evidence of building methods used by Dutch settlers of the Hudson River valley, and has been successively modified in each of the following centuries, with the last significant work occurring in the 1920s. All of the surviving farm buildings in the complex are at least 90 years old, and some date to the 19th century. The complex sits on a 1.5 acre parcel of land between US Route 7 and the Housatonic River that is a remnant of what was once a much large farm. The property also exhibits evidence of Native American habitation prior to the arrival of European colonists. The property was occupied by members of the Wheeler family from 1747 until 1988, and was conveyed by the heirs of the last residents to the Great Barrington Historical Society in 2008. The property was listed on the National Register of Historic Places in 2011. The historical society is, as of 2013, raising funds to adapt the property for use as its headquarters.
Document 12: Leavitt Farm: Leavitt Farm is a historic farmstead at 103 Old Loudon Road in eastern Concord, New Hampshire. It consists of three 19th century farm buildings, including the c. 1847 Greek Revival farmhouse, a large c. 1888 two story wood frame shop, and a wood frame barn, as well as a 19th-century privy which has been converted into a well pumphouse. These buildings were built by Jonathan Leavitt, a farmer and blacksmith, and were later owned by his son Almah, a sign painter. The property was in the 1980s used by the Concord Coach Society (now the Abbot-Downing Historical Society) as a headquarters and museum facility. The shop building in particular is notable for its adaptive reuse (as blacksmithy, paint shop, and museum), and for its second floor ballroom space, an unusual location for that type of social space.
Document 13: Wilder Homestead: Wilder Homestead, also known as the Boyhood Home of Almanzo Wilder, is a historic home and farmstead near Malone in Franklin County, New York. The farmhouse was built in 1843, and is a two-story, Greek Revival style frame dwelling. The front facade features a small porch supported by square columns. It has a 1 1/2-story rear block with a small colonnaded portico. The property includes eight reconstructed outbuildings including a visitor's center (1989), corn crib (1989), three barns (1995, 1997, 1999), picnic pavilion (1998), rest rooms (1999), and pump house (2002). The Wilder family occupied the property until about 1875. The property is operated by the Almanzo & Laura Ingalls Wilder Association as an interactive educational center, museum and working farm as in the time of Almanzo Wilder's childhood as depicted in the Laura Ingalls Wilder book "Farmer Boy".
Document 14: Bennett Farm (Henniker, New Hampshire): Bennett Farm is a historic farmstead at 11 Bennett Road in Henniker, New Hampshire. The area has been farmed since the 1730s, when Henniker was laid out, and has been in the Bennett family for over a century. The farmstead includes a number of buildings, the oldest of which is the c. 1780 main house. This building, a five bay two story wood frame with a large central chimney, was used as a tavern until the mid-19th century, when the property was converted to exclusively agricultural uses. The most unusual building on the property is the barn, which was originally built in 1834 as a religious meeting house, was moved to its present location in 1860 and then converted for use as a barn. Its steeple was blown off in 1937, leaving a cupola-like top.
Document 15: Concord Coach Lines: Concord Coach Lines, Inc., formerly known as Concord Trailways, is an inter-city bus company based in Concord, New Hampshire.
ground_truth: Concord, New Hampshire