Question: In which county did Charlie Sprague die?

full_context: Document 1: Charles Comiskey: Charles Albert Comiskey (August 15, 1859 – October 26, 1931), also nicknamed "Commy" or "The Old Roman", was an American Major League Baseball player, manager and team owner. He was a key person in the formation of the American League, and was also founding owner of the Chicago White Sox. Comiskey Park, the White Sox' storied baseball stadium, was built under his guidance and named for him.
Document 2: Middletown, Iowa: Middletown is a city in Des Moines County, Iowa, United States. The population was 318 at the 2010 census. It is part of the Burlington, IA–IL Micropolitan Statistical Area.
Document 3: Clyde Spearman: Clyde "Big Splo" Spearman (July 23, 1912 – February 13, 1955) was an African-American baseball outfielder in the Negro Leagues. He played from 1932 to 1946 with several teams. Three of his brothers, Charles, Henry, and Willie also played in the Negro Leagues.
Document 4: List of Major League Baseball single-game strikeout leaders: In baseball, a strikeout occurs when a pitcher throws three strikes to a batter during his time at bat. Twenty different pitchers have struck out at least 18 batters in a single nine - inning Major League Baseball (MLB) game as of 2016, the most recent being Max Scherzer of the Washington Nationals on May 11, 2016. Four players have accomplished the feat more than once in their career; no player has ever struck out more than 20 batters in a nine - inning game. (Tom Cheney struckout 21 in a 16 - inning game.) Charlie Sweeney was the first player to strike out 18 batters in a single game, doing so for the Providence Grays against the Boston Beaneaters on June 7, 1884. In spite of this, Bob Feller is viewed as the first pitcher to accomplish the feat, since his then - record 18 strikeouts was the first to occur during the 20th century and the live - ball era.
Document 5: Charlie Sprague: Charlie Sprague (October 10, 1864 in Cleveland, Ohio – December 31, 1912 in Des Moines, Iowa) was an outfielder and pitcher for Major League Baseball in the 19th century.
Document 6: Grand slam (baseball): Roger Connor is believed to have been the first major league player to hit a grand slam, on September 10, 1881, for the Troy Trojans. Although Charlie Gould hit one for the Boston Red Stockings (now the Atlanta Braves) in the National Association (NA) on September 5, 1871, the NA is not recognized by MLB as a major league.
Document 7: Christy Mathewson: Christopher Mathewson (August 12, 1880 – October 7, 1925), nicknamed "Big Six", "The Christian Gentleman", "Matty", and "The Gentleman's Hurler", was a Major League Baseball (MLB) right-handed pitcher who played 17 seasons with the New York Giants. He stood tall and weighed . He was among the most dominant pitchers in baseball history, and ranks in the all-time top ten in several key pitching categories, including wins, shutouts, and ERA. In fact, he is the only professional pitcher in history to rank in the top ten both in career wins and in career ERA, if taking 19th century pitchers statistics into account. Otherwise, both Mathewson and Walter Johnson would hold that distinction. In Mathewson was elected into the Baseball Hall of Fame as one of its first five members.
Document 8: Des Moines metropolitan area: The Des Moines metropolitan area, officially known as the Des Moines -- West Des Moines, IA Metropolitan Statistical Area (MSA), consists of five counties in central Iowa, United States: Polk, Dallas, Warren, Madison, and Guthrie. The 2010 census population of these counties was 569,633, and the 2017 estimated population was 645,911.
Document 9: Charlie Williams (umpire): He also worked the All-Star games in 1985 and 1995, the 1989 National League Championship Series between the San Francisco Giants and the Chicago Cubs, the 1997 NLCS between the Florida Marlins and the Atlanta Braves, and the 1999 National League Division Series. He ejected San Diego Padres first baseman Steve Garvey from a June, 1986 game between the Padres and the Atlanta Braves, the only ejection of Garvey's career, then ejected Padres manager Steve Boros the next day when Boros tried to present a videotape of the call Williams ejected Garvey over. He was also an umpire on September 28, 1988 when Orel Hershiser set the Major League record for consecutive scoreless innings pitched. He remained an umpire until his retirement in 2000 due to health problems, and died at age 61 in Chicago, Illinois after a long illness related to diabetes and kidney failure.
Document 10: Saylorville, Iowa: Saylorville is a census-designated place (CDP) in Polk County, Iowa, United States. The population was 3,301 at the 2010 census. It is part of the Des Moines–West Des Moines Metropolitan Statistical Area. The Saydel Community School District is located in this area. The unincorporated community of Marquisville is in this area.
Document 11: Colo, Iowa: Colo is a city in Story County, Iowa, United States. The population was 876 at the 2010 census. It is part of the Ames, Iowa Metropolitan Statistical Area, which is a part of the larger Ames-Boone, Iowa Combined Statistical Area.
Document 12: Corydon, Iowa: Corydon is a city in Wayne County, Iowa, United States. The population was 1,585 in the 2010 census, a decline from 1,591 in the 2000 census. It is the county seat of Wayne County.
Document 13: Kalona, Iowa: Kalona is a city in Washington County, Iowa, United States. It is part of the Iowa City, Iowa Metropolitan Statistical Area. The population was 2,363 at the 2010 census. Kalona is the second largest city in Washington County.
Document 14: Indianola, Iowa: Indianola is a city in Warren County, Iowa, United States, 18 miles south of Des Moines, Iowa. The population was 14,782 at the 2010 census. It is the county seat of Warren County.
Document 15: Chicago Cubs: In 1902, Spalding, who by this time had revamped the roster to boast what would soon be one of the best teams of the early century, sold the club to Jim Hart. The franchise was nicknamed the Cubs by the Chicago Daily News in 1902, although not officially becoming the Chicago Cubs until the 1907 season. During this period, which has become known as baseball's dead-ball era, Cub infielders Joe Tinker, Johnny Evers, and Frank Chance were made famous as a double-play combination by Franklin P. Adams' poem Baseball's Sad Lexicon. The poem first appeared in the July 18, 1910 edition of the New York Evening Mail. Mordecai "Three-Finger" Brown, Jack Taylor, Ed Reulbach, Jack Pfiester, and Orval Overall were several key pitchers for the Cubs during this time period. With Chance acting as player-manager from 1905 to 1912, the Cubs won four pennants and two World Series titles over a five-year span. Although they fell to the "Hitless Wonders" White Sox in the 1906 World Series, the Cubs recorded a record 116 victories and the best winning percentage (.763) in Major League history. With mostly the same roster, Chicago won back-to-back World Series championships in 1907 and 1908, becoming the first Major League club to play three times in the Fall Classic and the first to win it twice. However, the Cubs have not won a World Series since; this remains the longest championship drought in North American professional sports.
ground_truth: Warren County
sub_queries: Charlie Sprague >> place of death Answer: Des Moines
Des Moines >> located in the administrative territorial entity Answer: Warren County