Question: Katharine "Kate" Thatcher Clugston, was a playwright, poet, and English teacher, and passed away on Chebeague Island, an island town in Cumberland County, Maine, in which country?

full_context: Document 1: Islesboro, Maine: Islesboro is a town in Waldo County, Maine, United States. The population was 566 at the 2010 census. It has a summer colony accessible by ferry from Lincolnville Beach 3 miles to the west, or by air taxi service. Home to Warren Island State Park, Islesboro includes the villages of Dark Harbor, Pripet and North Islesboro otherwise known as Guinea.
Document 2: Kate Klise: Catherine "Kate" Klise (born April 13 in 1963) is an American writer known for children's fiction. Many of her books are illustrated by her sister, M. Sarah Klise. Their popular "Regarding" series is presented in a scrapbook format, with letters, journal entries, and related ephemera telling the story. She is also known for her picture books as well as the bestselling 43 Old Cemetery Road series. Klise's first adult novel, "In the Bag", was released in 2012. She is a contributor to "The Huffington Post".
Document 3: Harpswell, Maine: Harpswell is a town in Cumberland County, Maine, United States, within Casco Bay in the Gulf of Maine. The population was 4,740 at the 2010 census. Harpswell is composed of land contiguous with the rest of Cumberland County, called Harpswell Neck, as well as three large islands connected by bridges: Sebascodegan Island (locally known as Great Island), Orr's Island, and Bailey Island and over 200 smaller islands. Harpswell is part of the Portland–South Portland–Biddeford, Maine Metropolitan Statistical Area.
Document 4: Katherine Frank: Katherine Frank is a noted American author and biographer, now living in England. Her works include a highly acclaimed biography of Lucie Duff Gordon, and the more controversial book "Indira: The Life of Indira Nehru Gandhi," a biography of Indira Gandhi. She has also written A Voyager Out: The Life of Mary Kingsley, Emily Bronte and Crusoe: Daniel Defoe, Robert Knox and the Creation of a Myth.
Document 5: Kate Clugston: Katharine "Kate" Thatcher Clugston (1892, Whitley County, Indiana – 1985, Chebeague Island, Maine) was a playwright, poet, and English teacher.
Document 6: Kate Drumgoold: Kate Drumgoold (born c. 1858 or 1859 – ?) was an American woman born into slavery around 1858 near Petersburg, Virginia. Her life is captured in her autobiography, "A Slave Girl's Story, Being an Autobiography of Kate Drumgoold." It offers a message of racial uplift, faith, and education. "It is a rare portrait of a former slave who moved between the highly urbanized environment of New York City and the rural South."
Document 7: The Collected Essays and Occasional Writings of Katherine Anne Porter: The Collected Essays and Occasional Writings of Katherine Anne Porter
Document 8: Hope Island (Maine): Hope Island is a privately owned island in Casco Bay near the city of Portland, Maine, United States. It is a part of the Town of Chebeague Island, in Cumberland County. The 89 acre island was considered for an LNG terminal. Developer John Cacoulidis and his wife Phyllis bought the island in 1993. In addition to the existing 10,000 sq. ft. house built in 1913 with nine bedrooms, seven bathrooms and five fireplaces, the Cacoulidises built there a separate 3,300-square-foot guest house, a boathouse with an apartment, and roads looping the island. They've also erected horse stables, a chicken coop, a garage and their own church, and for access both a boat dock and a helicopter pad. In a dispute over property taxes, the two part-time residents attempted but failed in a legislative effort to secede from the town of Cumberland.
Document 9: Kate Boutilier: Kate Boutilier is an American screenwriter who is best known for writing Klasky Csupo shows like Rugrats, The Wild Thornberrys and All Grown Up! and the feature films "The Wild Thornberrys Movie", "Rugrats Go Wild", and co-writing "Rugrats in Paris". She now writes shows aimed for pre-school, having co-created and produced Poppy Cat and The Mr. Men Show. She is currently developing and executive producing an international pre-school series for a French animation company. Kate Boutilier was born in Bangor, Maine and attended Emerson College in Boston, Massachusetts, majoring in Mass Communications.
Document 10: Kate Upson Clark: Catherine Pickens Upson Clark (February 22, 1851 - February 18, 1935) was a writer. She wrote articles for "Godey's Lady's Book", "Atlantic Monthly", "Christian Herald", and "Harper's" magazine. She was an editor of the "Springfield Republican", "Good Cheer Magazine", and later the "New York Evening Post". She published several books, short stories, and one novel.
Document 11: Long Island, Maine: Long Island is an island town in Cumberland County, Maine, United States, which seceded from the city of Portland in 1993. The population was 230 at the 2010 census. It is part of the Portland–South Portland–Biddeford, Maine Metropolitan Statistical Area.
Document 12: Chebeague Island, Maine: Chebeague Island is an island town in Cumberland County, Maine, United States, located in Casco Bay, 10 mi from Portland. These islands are sometimes referred to as an older, now archaic term "The Calendar Islands" because there was once a belief that the approximate number of islands was 365. The actual number is fewer than two hundred. Great Chebeague was a part of the town of Cumberland until July 1, 2007, when it became the town of Chebeague Island. As of the 2010 census, the town had a population of 341.
Document 13: Cape Elizabeth, Maine: Cape Elizabeth is a town in Cumberland County, Maine, United States. The town is part of the Portland–South Portland–Biddeford, Maine metropolitan statistical area. As of the 2010 census, Cape Elizabeth had a population of 9,015.
Document 14: Walter Van Tilburg Clark: Walter Van Tilburg Clark (August 3, 1909 – November 10, 1971) was an American novelist, short story writer, and educator. He ranks as one of Nevada's most distinguished literary figures of the 20th century, and was the first inductee into the 'Nevada Writers Hall of Fame' in 1988. Two of his novels, "The Ox-Bow Incident" and "The Track of the Cat," were made into films. As a writer, Clark taught himself to use the familiar materials of the western saga to explore the human psyche and to raise deep philosophical issues.
Document 15: Mount Desert Island: Mount Desert Island (often abbreviated MDI), in Hancock County, Maine, is the largest island off the coast of Maine. With an area of 108 sqmi it is the 6th largest island in the contiguous United States. It is the second-largest island on the Eastern seaboard, behind Long Island and ahead of Martha's Vineyard. According to the 2010 census, the island has a year-round population of 10,615, although it is estimated that two and a half million tourists a year visit Acadia National Park on the island. The island is home to numerous well-known summer colonies such as Northeast Harbor and Bar Harbor.
ground_truth: United States