Question: What group is the author of the novel "The Round House" a member of?

Context paragraphs:
Havering-atte-Bower: Havering-atte-Bower is a village and outlying settlement of the London Borough of Havering, located 15 miles (24 km) northeast of Charing Cross and close to the Greater London boundary.  It was one of three former parishes whose area comprised the historic Royal Liberty of Havering.  The village has been the location of a number of palaces and large houses including Bower House, The Round House, Pyrgo Palace and Havering Palace.

Ashcombe House, East Sussex: Ashcombe House is a country house in St Ann Without, Lewes District in East Sussex.  A Grade II* listed building, it also contains a Round House or Toll House opposite it, which is a Grade II listed building in its own right.  The L-shaped two-storey house with "grey headers with dressings, quoins and [a] modillion cornice of red brick" dates to the 18th century, when it served as a farmhouse.  It was acquired by the University of Sussex in 1963 and served as the official residence of the University's Vice Chancellor till 1981.

Hominy Osage Round House: The Osage Round House is a 16-sided structure and is the only such round house standing in Osage County, Oklahoma.

Bridge Round House: The Bridge Round House is a diner located at the southeastern end of the Golden Gate Bridge, adjacent to the tourist plaza which was renovated in 2012.  The Bridge Round House, an Art Deco design by Alfred Finnila completed in 1938, has been popular throughout the years as a starting point for various commercial tours of the bridge and an unofficial gift shop.  The diner was renovated in 2012 and the gift shop was then removed as a new, official gift shop has been included in the adjacent plaza renovations.

The Round House (novel): The Round House is a novel by American writer Louise Erdrich, first published in 2012.  It is her 14th novel.  Some critics considered it a thematic sequel to Erdrich's 2008 novel "The Plague of Doves" due to its themes of revenge.  Like most of Erdrich's other works it is set on an unnamed Indian reservation in North Dakota.

Edward Elderkin House: The Edward Elderkin House, also known as the Round House, is a historic octagon house built in 1856 by Edward Elderkin.  It is located at 127 South Lincoln Street in Elkhorn, Wisconsin, United States.  On May 3, 1974, it was added to the National Register of Historic Places.  The two-story home was constructed of buff brick and features a wrap-around porch, a tall, windowed cupola and a central chimney.

Louise Erdrich: Louise Erdrich (born Karen Louise Erdrich, June 7, 1954) is an American author, writer of novels, poetry, and children's books featuring Native American characters and settings.  She is an enrolled member of the Turtle Mountain Band of Chippewa Indians, a band of the Anishinaabe (also known as Ojibwe and Chippewa).

Big Brother 3 (Australia): Big Brother 2003, also known as Big Brother 3, was the third series of the Australian reality television series "Big Brother Australia".  The season lasted 86 days, starting on 27 April 2003 and ending on 21 July 2003.  The season was the most complicated to date with housemates starting in two separate houses - a "round house" and a "square house".  Housemate Benjamin Archbold was sent in first and spent the entire first day by himself.  Other housemates were progressively admitted.  On Night 22, all Housemates were locked into their respective bedrooms and a construction crew spent the night merging the two houses and revealing the hidden swimming pool and kitchen that had been in between the two smaller houses.  Housemates were released into their new combined house on the morning of Day 23.  Later in the day, a bathroom linking the two bedrooms was revealed.

The Round House: The Round House is a Grade II* listed late Georgian elliptical stuccoed villa located on Broxhill Road in Havering-atte-Bower, London.  The house was built between 1792 and 1794 by John Plaw for William Sheldon.  The house is open as part of the Open House London weekend.

Round House (Nunspeet, Netherlands): The "Round House" (Dutch: "Ronde Huis") was a round villa in the Netherlands, located in the municipality of Nunspeet.  It was demolished in 1967 but its traces remain visible in the landscape.

Supporting paragraphs: The Round House (novel) Louise Erdrich
Answer: Turtle Mountain Band of Chippewa Indians