Question: What U.S. county holds the Illinois city that's the namesake of the birthplace of Roy MacSkimming?

full_context: Document 1: Charles Colbourn: Colbourn was born on October 24, 1953, in Toronto, Ontario; despite working in the United States since 1996 he retains his Canadian citizenship. He did his undergraduate studies at the University of Toronto, graduating in 1976; after a master's degree at the University of Waterloo, he returned to Toronto for a Ph.D., which he received in 1980 under the supervision of Derek Corneil. He has held faculty positions at the University of Saskatchewan, University of Waterloo, University of Vermont, and Arizona State University, as well as visiting positions at several other universities. He has been one of three editors-in-chief of the "Journal of Combinatorial Designs" since 1992.
Document 2: Ottawa, Illinois: Ottawa is a city located at the confluence of the navigable Illinois River and Fox River in LaSalle County, Illinois, United States. The Illinois River is a conduit for river barges and connects Lake Michigan at Chicago, to the Mississippi River, and North America's 25,000 mile river system. The population estimate was 18,562 as of 2013. It is the county seat of LaSalle County and it is part of the Ottawa-Peru, IL Micropolitan Statistical Area.
Document 3: Shippingsport Bridge: Shippingsport Bridge has been the name of three similarly-located bridges over the Illinois River in LaSalle Township, LaSalle County, Illinois: an 1872 swing span bridge, a 1929 vertical-lift bridge nearby, and a 2003 bridge in the same location as the 1929 bridge. The third bridge still exists and carries Illinois Route 351 (IL 351).
Document 4: Geography of Illinois: Illinois is in the midwestern United States. Surrounding states are Wisconsin to the north, Iowa and Missouri to the west, Kentucky to the south, and Indiana to the east. Illinois also borders Michigan, but only via a northeastern water boundary in Lake Michigan. Nearly the entire western boundary is the Mississippi River, except for a few areas where the river has changed course. Illinois' southeastern and southern boundary is along the Wabash River and the Ohio River. Whereas, its northern boundary and much of its eastern boundary are straight survey (longitudinal and latitudinal) lines. Illinois has a maximum north - south distance of 390 miles (630 km) and 210 miles (340 km) east - west. Its total area is 57,918 square miles (150,010 km).
Document 5: The Globe and Mail: The Globe and Mail The January 25, 2013 front page of The Globe and Mail Type Daily newspaper Format Broadsheet Owner (s) The Woodbridge Company Founder (s) George Brown Publisher Phillip Crawley Editor David Walmsley Founded 1844; 174 years ago (1844) Political alignment Centrist Economic liberalism Headquarters 351 King Street East Toronto, Ontario M5A 1L1 Canada Circulation 291,571 Daily 354,850 Saturday (March 2013) ISSN 0319 - 0714 Website theglobeandmail.com
Document 6: Ottawa, Kansas: Ottawa is a city in, and the county seat of, Franklin County, Kansas, United States. It is located on both banks of the Marais des Cygnes River near the center of Franklin County. As of the 2010 census, the city population was 12,649.
Document 7: Rock River (Mississippi River tributary): The river begins with three separate branches which flow into the Horicon Marsh. The northermost branch, the West Branch, begins just to the west of the village of Brandon in Fond du Lac County, Wisconsin and flows east and then south to Horicon Marsh. The South Branch rises north of Fox Lake in Dodge County and flows east through Waupun to the marsh. The East Branch rises southeast of Allenton in Washington County just west of the Niagara Escarpment, and flows north and west through Theresa to the marsh. Leaving the marsh, it meanders southward to the Illinois border ending about 300 miles later at the Mississippi River at the Quad Cities in Illinois and Iowa. During its course it passes through Watertown, collects the Crawfish River in Jefferson, and receives the Bark River at Fort Atkinson. In northern Rock County it receives the Yahara River, and flows southward through Janesville and Beloit into northern Illinois, where it receives the Pecatonica River 5 miles (8 km) south of the state line.
Document 8: Roy MacSkimming: Born in Ottawa, Ontario and educated at the University of Toronto, MacSkimming broke into book publishing in 1964 at Clarke, Irwin and later co-founded New Press, one of Canada's leading small presses of the 1970s. He has been books editor and literary columnist at "The Toronto Star", and has contributed to a number of newspapers and periodicals, including "The Globe and Mail", "The Ottawa Citizen", "Maclean's" and "Saturday Night". MacSkimming has served as publishing officer with the Canada Council for the Arts, and policy director of the Association of Canadian Publishers.
Document 9: Ottawa: Ottawa (/ ˈɒtəwə / (listen), / - wɑː /; French pronunciation: ​ (ɔtawa)) is the capital city of Canada. It stands on the south bank of the Ottawa River in the eastern portion of southern Ontario. Ottawa borders Gatineau, Quebec; the two form the core of the Ottawa -- Gatineau census metropolitan area (CMA) and the National Capital Region (NCR). As of 2016, Ottawa had a city population of 934,243 and a metropolitan population of 1,323,783 making it the fourth - largest city and the fifth - largest CMA in Canada.
Document 10: Oklahoma: Two inland ports on rivers serve Oklahoma: the Port of Muskogee and the Tulsa Port of Catoosa. The only port handling international cargo in the state, the Tulsa Port of Catoosa is the most inland ocean-going port in the nation and ships over two million tons of cargo each year. Both ports are located on the McClellan-Kerr Arkansas River Navigation System, which connects barge traffic from Tulsa and Muskogee to the Mississippi River via the Verdigris and Arkansas rivers, contributing to one of the busiest waterways in the world.
Document 11: Richard Labonté: Originally from Edmonton, Alberta, Labonté studied English and political science at Carleton University in Ottawa, where he was an editor for "The Charlatan". Following school he joined the "Ottawa Citizen" in 1972 as an editor, later writing film and book reviews, and was a contributor to "The Body Politic". In 1980, he contributed to an "Ottawa Citizen" series on gay life in Ottawa, becoming one of the first Canadian journalists ever to come out in the pages of a mainstream newspaper.
Document 12: John Ross Robertson: Born in Toronto, the son of John Robertson and Margaret Sinclair, Robertson was educated at Upper Canada College, a private high school in Toronto. As a young man, he started a newspaper at UCC called "Young Canada" and a satirical weekly magazine, "The Grumbler". The Grumbler was published in 1864 in a building on the corner of King Street and Toronto Street in Toronto. The Grumbler was one of Robertson's more well known publications.
Document 13: Kevin S. MacLeod: Born in North Sydney, Nova Scotia, MacLeod studied at Boston University and Carleton University, where he received both his bachelor's degree in history and political science and a master's degree in international affairs, before moving on to the University of Burgundy in Dijon, France. After his return from there, MacLeod served for 10 years as an administrative assistant in the House of Commons of Canada, subsequently acting as a chief of staff for one of the then ministers of the Crown before being employed by the Department of Canadian Heritage for 22 years. Among his accomplishments in that office, MacLeod was appointed as the Chief of Protocol and then authored "A Crown of Maples/la couronne canadienne"an educational book on the Canadian monarchy, published by the heritage department.
Document 14: Arlington, Illinois: Arlington is a village in Bureau County, Illinois, United States. The population was 193 at the 2010 census. It is part of the Ottawa–Streator Micropolitan Statistical Area, located east of the Quad Cities, north of Peoria and Galesburg, west of LaSalle and Peru, and southwest of Rockford and Chicago.
Document 15: Ken McGoogan: Born in Montreal (1947) and raised in a francophone town, McGoogan has traveled widely, both in Canada and abroad. After attending Sir George Williams University, he earned a bachelor's degree in journalism at Ryerson and a master's degree in creative writing at the University of British Columbia.
ground_truth: LaSalle County
sub_queries: Roy MacSkimming >> place of birth Answer: Ottawa
Ottawa >> located in the administrative territorial entity Answer: LaSalle County