Question: What county in Maine is the George W. Smith Homestead located in?

Context paragraphs:
Mattawamkeag, Maine: Mattawamkeag is a town in Penobscot County, Maine, United States, located where the Mattawamkeag River joins the Penobscot River.  The population was 687 at the 2010 census.

Noah Ogle Place: The Noah "Bud" Ogle Place was a homestead located in the Great Smoky Mountains of Sevier County, in the U.S. state of Tennessee.  The homestead presently consists of a cabin, barn, and tub mill built by mountain farmer Noah "Bud" Ogle (1863–1913) in the late 19th century.  In 1977, the homestead was added to the National Register of Historic Places and is currently maintained by the Great Smoky Mountains National Park.

Dundullimal Homestead: Dundullimal Homestead is a colonial slab hut type homestead located about 7 km south of Dubbo, New South Wales, on Obley Road and the Macquarie River.  It is located two kilometres further than Western Plains Zoo on Obley Road.  Driving time is approximately 8 minutes from Dubbo Post Office (Talbragar Street), but the property can also be accessed via the Tracker Riley cycle way.  The homestead is listed on the Register of the National Estate.

Rhoads Homestead: Rhoads Homestead is a historic homestead located at New Hope, Bucks County, Pennsylvania.  The farmhouse consists of two sections; the oldest built about 1734.  The first section is a 2 ⁄ -story fieldstone structure with a 1-story, sloped roof fieldstone addition attached.  A second house dates to 1760, and is a 2 ⁄ -story, fieldstone dwelling remodeled in the 19th century in the Victorian style.  It has a 2-story stone addition and a 1-story board-and-batten addition.  Associated with this house are stone spring houses, board-and-batten wood sheds, a clapboard pump shelter, and the ruins of a small bank barn.  The third house was built in 1858, and is a small 2 ⁄ -story, board-and-batten dwelling built to house servants.  The homestead was the site of General William Alexander's three week bivouac prior to the Battle of Trenton from December 8 through December 25, 1776.

Smith Farmhouse (Lake City, Iowa): The Smith Farmhouse, also known as the Smith Homestead Farmhouse, is a historic dwelling located in Lake City, Iowa, United States.  This house's significance is due to its association with the pioneer Smith family.  Peter and Sarah Smith and their four young sons settled here from Cass County, Michigan in 1855.  Their first two houses were built on the same property to the north of this one.  Their first house and barn were log structures, and their second was frame construction.  What is now known as Lake City was chosen as the county seat for Calhoun County because it was the area with the highest population.  (It would lose that distinction to Rockwell City in 1876.)  Smith donated 40 acre of land for the town.

Hollingshead Homestead: Hollingshead Homestead is a historic homestead located at 107 W. 1200 N. County Road in Teton County, Idaho, near the city of Tetonia.  Brothers Miles and Karl Hollingshead established the homestead in 1906, claiming the land under the Homestead Act of 1862.  At the time, Eastern Idaho was one of the few places where homesteaders could claim productive farmland, as its climate had discouraged earlier settlement.  The brothers built a farm on the land, reflecting the region's agricultural economy.

Steele Homestead: The Steele Homestead is a historic homestead located along Wyoming Highway 191 northeast of Boulder, Wyoming.  The homestead was established in 1886 by Ed P. Steele, who built a one-room cabin at the site; this cabin was expanded several times until it grew to eight rooms after a 1908 addition.  Steele and his family operated and added land to the ranch until it reached a peak of 3000 acres ; by this point, the Steeles owned 600 cattle and 100 horses.  Meanwhile, the ranch continued to add buildings, including a main barn and several sheds; it now has seventeen buildings, fourteen of which are contributing buildings to its National Register listing.  Steele's children all stayed in the ranching business, and the homestead is still owned by his descendents.

George W. Smith Homestead: The George W. Smith Homestead is a historic house on Main Street in Mattawamkeag, Maine.  Built in 1874 by the son of one of the town's early settlers, the Italianate-style house is the only house of significant architectural merit in the small community.  It was listed on the National Register of Historic Places in 1980.

Boonecroft: Boonecroft is a historic homestead located at Exeter Township, Berks County, Pennsylvania.  It includes the remains of the 1720 log cabin built by Quaker settler George Boone, III.  The remains consists of a chimney and fireplace and commemorated by a stone marker erected in 1925.  The log cabin burned in 1924.  The adjacent stone farmhouse was built in 1733, and is a 2 1/2-story Colonial English style structure.  It is built of fieldstone with sandstone quoins, and has a slate covered gable roof.  It has a one-story, stone addition.  Also on the property are the contributing guesthouse / spring house, smokehouse, and barn.  The property is considered the ancestral home of the Boone Family in America, that includes frontiersman Daniel Boone, grandson of George Boone, III.  Daniel Boone was born at the nearby Daniel Boone Homestead.

Tyson McCarter Place: The Tyson McCarter Place was a homestead located in the Great Smoky Mountains of Sevier County, in the U.S. state of Tennessee.  Before the establishment of the Great Smoky Mountains National Park in the 1930s, the homestead belonged to mountain farmer Jacob Tyson McCarter (1878–1950), a descendant of some of the area's earliest European settlers.  While McCarter's house is no longer standing, several outbuildings— including a barn, springhouse, corn crib, and smokehouse— have survived, and have been placed on the National Register of Historic Places.

Supporting paragraphs: George W. Smith Homestead Mattawamkeag, Maine
Answer: Penobscot County