Oklahoma State University (Bachelor of Arts, 1966). University of Tulsa (Juris Doctor, 1970).
He played as a winger for Bolton Wanderers between 1959 and 1968, before ending his playing career following a five-year spell at Rochdale. Later working as a coach and assistant manager, he spent an unsuccessful time as Portuguese Vale manager between 1978 and 1979. Dennis played for Leigh Grammar School and Atherton Schoolboys before joining Bolton Wanderers at the age of 15 in 1959.
He spent nine years with the club, racking up 65 appearances.
Dennis made his debut under Bill Ridding in December 1963 at Aston Villa. The following week he made a winning Burnden Park debut against the great Tottenham Hotspur side before scoring his first league goal at Arsenal in January 1964.
At the end of the 1963-1964 season the "Trotters" were relegated out of the First Division. He was an ever present until a bad cartilage injury in October 1964, which kept him out of football for nearly a year.
He was signed by Bob Stokoe and spent over six years with Rochdale playing 156 league games, and scoring 36 goals before his early retirement as a player in 1973.
Following his retirement as a player, he coached at Rochdale and Bury. He was made assistant manager at Portuguese Vale under Bobby Smith in November 1977. After Smith"s departure to Swindon Town, he became manager for the 1978-1979 season.
The "Valiants" finished 16th in the Fourth Division and later he left by mutual consent in August 1979.
He had signed popular player Bernie Wright from Bradford City for £9,000, however most of his big money signings had torrid times at Vale Park. He signed right-back Neil Wilkinson (free), Ken Todd (a club-record £37,000 signing despite only having made a handful of appearances for Wolverhampton Wanderers), Gerry Keenan (£15,000), Felix Healy (£8,000), Kevin Tully (£3,000 plus Neil Wilkinson), Andy Proudlove (£1,000), Peter Farrell (breaking the club-record again at £40,000), and Bob Delgado (£30,000).
To finance these signings, he sold John Froggatt (£8,000), Mick Moore (£2,000), Terry Bailey (£2,000), Ken Beamish (£35,000), and John Ridley (£55,000). After his team were booed he called the fans "a bunch of yobs".
Vale recorded a £52,000 loss despite a remarkable £225,000 income from the club"s commercial department.
Butler"s transfer dealings had lost the club £36,000, whilst wages more than doubled from £113,000 to £259,000. After leaving Burslem, Butler then reunited with Bobby Smith at Swindon, becoming the first team coach before retiring from football in 1980. with Rochdale.
Comanche County and Oklahoma Bar Associations. Oklahoma Trial Lawyers Association.