Question: In what county was the team Bobby Averell was known for playing on based?

Context paragraphs:
Johnny Windhurst: John Henry Windhurst (November 5, 1926 - October 2, 1981) was a jazz trumpet player, who played primarily in the swing, big-band, and dixieland styles.  Windhurst was a self-taught musician and known for his solos; he considered Bix Beiderbecke, Bobby Hackett, Wild Bill Davison, and Bunny Berigan among his influences.  His playing style was considered to be a mixture of the delicate playing style of Bobby Hackett with his own feathery vibrato and mobility.  Ruby Braff has cited Windhurst as one of his biggest inspirations as a jazz artist.

Derbyshire Senior Cup: The Derbyshire County FA Senior Cup is a local county football cup for teams based in the county of Derbyshire.  Founded in 1883-1884, the first competition was won by Staveley, who beat Derby Midland 2-1 in the final.  1885-1886 saw Heeley from Yorkshire win the competition.  It wasn't until 1892 that the county's top club Derby County first won the trophy.  This delay was partially helped by a disagreement during Derby County's first season 1884-1885.  After beating Derby St. Luke's and Wirksworth, Derby County were drawn at home to Long Eaton Rangers in the third round.  The club applied for a week's delay in playing the fixture, however Long Eaton Rangers claimed the tie stating that they weren't aware of any change in date and had arrived on the set date to play.  A correspondent of the 'Derby Daily Telegraph' wrote that the referee had arrived to take charge on the re-arranged date.  The Derbyshire County FA awarded the tie to Long Eaton Rangers and the following season Derby County played in the Birmingham and District FA Senior Cup and set up their own Charity Cup.  Players also boycotted playing for the County FA team in protest.  It wasn't until 1887-1888 that Derby County next played in their own county's competition, where again in the third round they were drawn to play Long Eaton Rangers who won the tie 4-1.

Battle of Kelly's Ford: The Battle of Kelly's Ford, also known as the Battle of Kellysville or Kelleysville, took place on March 17, 1863, in Culpeper County, Virginia, as part of the cavalry operations along the Rappahannock River during the American Civil War.  It set the stage for Brandy Station and other cavalry actions of the Gettysburg Campaign that summer.  Twenty-one hundred troopers of Brig. Gen. William W. Averell's Union cavalry division crossed the Rappahannock to attack the Confederate cavalry that had been harassing them that winter.  Brig. Gen. Fitzhugh Lee counterattacked with a brigade of about 800 men.  After achieving a localized success, Union forces withdrew under pressure in late afternoon, without destroying Lee's cavalry.

Tuscaloosa Warriors: The Tuscaloosa Warriors were a professional American football team based in Tuscaloosa, Alabama, and were members of the Southern Professional Football League (SPFL).  The Warriors were under the ownership of Eddie Brightwell with both Bobby Jackson and Bobby Luna serving as player-coaches.  For their lone 1963 season, the Warriors compiled an 8-7 record with home games being played at both Tuscaloosa County High School Stadium and Denny Stadium.  Due to low home attendance, in May 1964 team ownership announced the franchise would be relocated to Columbus, Mississippi and compete as the Columbus Warriors for the 1964 season.

Battle of Rutherford's Farm: The Battle of Rutherford's Farm, also known as Carter's Farm and Stephenson's Depot, was a small engagement between Confederate forces under Maj. Gen. Stephen D. Ramseur and Union forces under Brig. Gen. William W. Averell on July 20, 1864, in Frederick County, Virginia, during the American Civil War, as part of Confederate Lt. Gen. Jubal Early's Valley Campaign, resulting in a Union victory.

Greyfriars Bobby (film): Greyfriars Bobby is a 1961 Walt Disney Productions feature film starring Donald Crisp and Laurence Naismith in a story about two Scottish men who compete for the affection of a Skye Terrier named Bobby.  The screenplay by Robert Westerby was based upon the 1912 novel "Greyfriars Bobby" by Eleanor Atkinson which was based, in turn, upon an incident in 19th century Edinburgh involving a dog that came to be known as Greyfriars Bobby.  It was the second film based upon Atkinson's novel, the first being "Challenge to Lassie" in which Crisp also starred.  The film was directed by Don Chaffey and shot in England and Scotland.  The film has been released to DVD.

Bobby Averell: Robert "Bobby" Averell (born 1947) is a retired Northern Irish football centre back, best remembered for his two spells in the Irish League with Ballymena United.  He also played in the North American Soccer League for Toronto Metros.

John Mariano: John Mariano (born August 5, 1960 in Astoria, New York) is an American actor who has worked in film, television, animation and nightclubs.  He is known for playing tough guys with a comic edge.  His ability of physical comedy has been compared to Jerry Lewis and Buster Keaton.  Keaton's wife Eleanor was quoted as saying; "He reminded me so much of Buster, it gave me chills".  He got his start in films playing a prissy bank teller in "Tough Guys" with Burt Lancaster and Kirk Douglas.  Working steadily in both film and television, he's best remembered on television for playing Johnny the waiter in "Caroline in the City" with Lea Thompson.  A gifted improviser, sketch player and voice-over artist, his impression of Robert De Niro in a sketch entitled "De Niro Sings the Supremes" at The Groundlings, led to him playing a pigeon named Bobby in the cartoon series "Animaniacs", who is based on a character played by De Niro in "Goodfellas".

Ballymena United F.C.: Ballymena United Football Club is a semi-professional football club from Northern Ireland.  Based in Ballymena, County Antrim, the team competes in the NIFL Premiership and plays home matches at the Ballymena Showgrounds. The club is managed by iconic Irish League player/manager David Jeffrey.

Ginn Racing: Ginn Racing was a NASCAR Nextel Cup Series team based in Mooresville, North Carolina, near the sport's hub in Charlotte.  Its principal owners in its final season, 2007, were resort and real-estate developers Bobby Ginn and Thomas Ginn (the Ginn family owned 80%) and longtime team director Jay Frye (20%).  The team's original name was MB2 Motorsports, formed by the last names of the team owners Read Morton, Tom Beard, and Nelson Bowers.  Bowers was the longest tenured of the original owners, and the listed owner of the teams' entries when Bobby Ginn bought out the team.  The Valvoline corporation co-owned the No. 10 (later the No. 14) car with the principal owners from 2001 to 2005 as MBV Motorsports, while the No. 36 entry (later the No. 13) was co-owned by Centrix Financial, LLC owner Robert Sutton as MB Sutton Motorsports in 2005.

Supporting paragraphs: Bobby Averell Ballymena United F.C.
Answer: County Antrim