Question: Who was the long-term partner of the owner of Watford Football Club (1976 to 1987) who died in 1992?

Context articles: Elton John
Vance Buck
List of Watford F.C. players
2011–12 Watford F.C. season
2010–11 Watford F.C. season
1914–15 Watford F.C. season
List of Watford F.C. seasons
Watford F.C.
Watford F.C. Player of the Season
2009–10 Watford F.C. season

Sir Elton Hercules John, (born Reginald Kenneth Dwight; 25 March 1947), is an English singer, pianist, and composer.
 He has worked with lyricist Bernie Taupin as his songwriting partner since 1967; they have collaborated on more than 30 albums to date.
 In his five-decade career Elton John has sold more than 300million records, making him one of the best-selling music artists in the world.
 He has more than fifty Top 40 hits, including seven consecutive No. 1 US albums, 58 "Billboard" Top 40 singles, 27 Top 10, four No. 2 and nine No. 1.
 For 31 consecutive years (1970–2000) he had at least one song in the "Billboard" Hot 100.
 His tribute single, re-penned in dedication to the late Princess Diana, "Candle in the Wind 1997" sold over 33million copies worldwide and is the best-selling single in the history of the UK and US singles charts.
 He has also composed music, produced records, and has occasionally acted in films.
 John owned Watford Football Club from 1976 to 1987, and 1997 to 2002.
 He is an honorary Life President of the club, and in 2014 had a stand named after him at the club's home stadium.
Vance Matthew Buck (February 5, 1961 – July 6, 1992) was an American entrepreneur, best known for his long-term relationship with Elton John.
Watford Football Club is an English association football club based in Watford, Hertfordshire.
 Formed as Watford Rovers in 1881, and renamed West Hertfordshire in 1893, the team joined the Southern League in 1896.
 West Hertfordshire merged with local rivals Watford St. Mary's for the start of the 1898–99 season, adopting the club's present name.
 Between 1898 and 1920, Watford competed in the Southern League, winning the championship in 1914–15.
 The Southern League was suspended for the next four seasons due to the First World War.
 On the league's resumption in 1919–20, Watford finished as runners up on goal average.
 At the start of 1920–21, Watford joined the Football League Third Division, and transferred to the Third Division South when the league was reorganised the following season.
 They have played in the Football League ever since, with the exception of 1939–1946, when competitive football was suspended due to the Second World War, and the 1999–2000 and 2006–07 seasons, when they competed in the Premier League.
 In addition to the latter two seasons, the club also competed in the top division of English football between 1982 and 1988, achieving their highest league placing of second in the 1982–83 season.
Watford Football Club (also known simply as Watford, or as The Hornets) is an English football club from Watford, Hertfordshire.
 The team competed in the Football League Championship in 2011–12, their fifth consecutive season in the second tier of English football since their relegation from the Premier League in 2006–07.
 The 2011–12 season consisted of pre-season friendlies in July 2011, followed by competitive matches in the Football League, FA Cup and Football League Cup between August 2011 and April 2012.
 Assistant manager Sean Dyche became manager in July 2011, following the departure of Malky Mackay.
 The club's captain for the season was central midfielder John Eustace.
 Watford's chairman was Graham Taylor, who previously took Watford from the Fourth Division to the First Division as manager.
Watford Football Club (also known simply as Watford, or as The Hornets) is an English association football club from the town of Watford, in Hertfordshire.
 The 2010–11 English football season officially began on 1 July 2010, and ended on 30 June 2011, although Watford only played competitive fixtures between August and May.
 The team competed in the Football League Championship for the fourth consecutive season, following relegation from the Premier League in 2006–07.
 The club chairman was Graham Taylor, who as a manager took Watford from the Fourth Division to the top division of English football.
 Their manager was Malky Mackay, and their captain was central midfielder John Eustace.
Watford Football Club are an association football team from the county of Hertfordshire, England.
 The 1914–15 season was their nineteenth season of league football, since joining the Southern League as West Hertfordshire for the 1896–97 season.
 Watford finished the season as champions of the Southern League First Division, winning 22 and drawing 8 of their 38 league matches.
 In other competitions, Watford were eliminated from the FA Cup in the sixth qualifying round by Rochdale, and from the Southern Charity Cup by fellow Southern League team Luton Town.
 The club's manager was Harry Kent, and its top scorer George Edmonds, with 17 goals from 35 appearances.
 Other notable players included Skilly Williams, who began what would be a 13-year period as the club's first choice goalkeeper, and Fred Gregory, whose goal against Gillingham sealed the title for Watford.
 Gregory and Williams were also the only two men to play in all 40 of Watford's games.
Watford Football Club is an English football club from Watford, Hertfordshire.
 Formed as Watford Rovers in 1881, the club entered the FA Cup for the first time in 1886.
 In the same year, they also entered the county-wide Herts Senior Cup, reaching the final six times over the next ten years.
 Watford Rovers became West Hertfordshire in 1893, and joined the Southern League for the 1896–97 season.
 The team started to change from one composed entirely of amateurs to one including paid professionals.
 In 1898, West Hertfordshire merged with Watford St Mary's to form Watford Football Club.
Watford Football Club is a professional football club based in Watford, Hertfordshire, England, that plays in the Premier League, the highest level in the English football league system.
 Founded in 1881 as Watford Rovers, the club entered the FA Cup for the first time in 1886, and the Southern League a decade later.
 After finishing the 1914–15 season as Southern League champions under the management of Harry Kent, Watford joined the Football League in 1920.
 The club played at several grounds in its early history, before moving to a permanent location at Vicarage Road in 1922, where it remains to this day.
 Watford spent most of the following half century in the lower divisions of The Football League, changing colours and crest on multiple occasions.
Watford Football Club are an English football club, from Watford, Hertfordshire.
 Founded in 1881 as Watford Rovers, the club has competed in the Football League since 1920, with the exceptions of 1999–2000, 2006–07, 2015–16 and 2016–17, when it competed in the Premier League.
 First introduced by the "Watford Observer" in the 1972–73 season, the Watford F.C. Player of the Season award is voted for annually by supporters of the club.
 It recognises the best overall performance by an individual player through the season.
 Each year the winner is presented with the "Watford Observer Trophy" at the club's end-of-season awards dinner.
Watford Football Club are an association football club from Watford, Hertfordshire, England.
 Home matches were played at the club's stadium, Vicarage Road, which had a capacity of 17,504 for the 2009–10 season.
 Watford's season officially began on 1 July 2009 and concluded on 30 June 2010, although competitive matches were only played between August and May.
 They competed in the Football League Championship, the second highest division in English football, following their relegation from the Premier League in 2007.