Question: Reg Mountford played football that for a team that competes in which league?

Context articles: Herb Sies
Vic Hanson
Red Roberts (American football)
George Capron
Ken Gray (American football)
Reg Mountford
Howard Keys
Huddersfield Town A.F.C.
Eddie Sauer
Ernie Koy, Jr.

Dale Hubert "Herb" Sies (January 2, 1893 – October 17, 1954) was an American football player and coach.
 He was born on January 2, 1893 in Ames, Iowa and attended Davenport High School.
 He enrolled at the University of Pittsburgh, where he played football as a guard.
 Sies was named a consensus All-American in 1917.
 Seis played five seasons in the National Football League (NFL) and its predecessor, the American Professional Football Association.
 Sies began his professional playing career with the Cleveland Tigers in 1920 for whom he started one game.
 The following season, he played for the Dayton Triangles as a right guard.
 That season, he started in nine games, and the following year, he started in eight games.
 In 1923, he both played for and served as the head coach for the Rock Island Independents.
 Sies coached his team to an 8–2–3 record to finish 12th in the league.
 He started in eight games for the Independents and made good three field goals and eight extra point attempts.
 That season, "Collyer's Eye" magazine named Sies to its All-NFL second team.
 In 1924, he returned to Dayton for his final season.
 He made one field goal attempt for the Triangles.
Victor A. Hanson (July 30, 1903 – April 10, 1982) was an American football player and coach, basketball player, and baseball player.
 A three-sport college athlete, he played football, basketball, and baseball at Syracuse University in the 1920s, serving as team captain in all three sports.
 The Watertown, New York native was named an Basketball All-American three times—in 1925, 1926, and 1927—by the Helms Athletic Foundation and was a consensus selection to the 1926 College Football All-America Team.
 Following his college career he played briefly with the Cleveland Rosenblums in the American Basketball League and then formed a basketball team, the Syracuse All-Americans.
 He was also signed by the New York Yankees of Major League Baseball upon graduation from Syracuse in 1927 and played one year in their farm system.
 Hanson served as the head football coach at his alma mater from 1930 to 1936, compiling a record of 33–21–5.
 He is only player inducted into both the Naismith Memorial Basketball Hall of Fame and the College Football Hall of Fame.
James Madison "Red" Roberts (August 23, 1900 – June 27, 1945) was an American football player and coach.
 He played football for the Centre Praying Colonels in Danville, Kentucky.
 Roberts was thrice selected All-Southern, and a unanimous choice for the "Associated Press" Southeast Area All-Time football team 1869-1919 era.
 After college Roberts, played in the early National Football League (NFL) for the Toledo Maroons and the Akron Pros.
 He also played in the first American Football League for the Cleveland Panthers.
 He later made a run for the office of Governor of Kentucky as a Democrat in 1931, losing in the primary to Ruby Laffoon who went on to win the election.
George H. Capron (July 27, 1886 – October 1972) was an American football and baseball player.
 Capron played football and baseball for the University of Minnesota from 1907 to 1908.
 In 1907, the Minnesota football team scored only 55 points, and "Capron accounted for 44 of them with dropkicked field goals at four points each."
 He was selected as a third-team All-American by Walter Camp at the end of the 1907 season.
 Late in his career at the University of Minnesota, Capron became involved in a controversy over his eligibility when reports surfaced that he had played professional baseball under a false name.
 Capron later admitted that he played baseball under the name Robb at Meridian, Mississippi in 1908 and at Mattoon, Illinois in 1907.
 From 1909 to 1910, Capron played two years of professional baseball in the Northwestern League.
 In 1909, he played 155 games as the left fielder for the Seattle Turks, compiling 164 hits, 27 doubles, 8 triples, 15 home runs, and a .275 batting average.
 In 1910, he played 35 games for the Vancouver Beavers though his batting average dropped to .207.
 He also played professional football in the early days of the professional game in the 1910s.
 He resided in Fresno, California in his later years.
Kenneth Don Gray (born March 10, 1936 in San Saba, Texas) was an offensive guard who played 13 seasons in the National Football League for the Chicago Cardinals/St. Louis Cardinals and the Houston Oilers.
 Gray attended and played football for four seasons at Howard Payne University.
 His first NFL contract, in 1958, paid him $6,000.00.
 In those days the league was composed of 12 teams, split into two divisions.
 After retiring as a player, earning six All-Pro awards, he served for three years as head coach at his high school alma mater, Llano High and offensive line coach for the 1977 AFC Champion Denver Bronco team that earned its way to Super Bowl XII, to play against the Dallas Cowboys.
 In 2016, he was inducted into the Texas Sports Hall of Fame along with former University of Texas head football coach Fred Akers, former Dallas Cowboys offensive lineman Larry Allen and former Major League Baseball pitcher Andy Pettitte.
 He earned a spot on the St. Louis Cardinals’ All-Time Team and the NFL All-1960s Team.
 A Christian, Gray first and foremost considers himself blessed with his lovely and gracious wife, Shirley, who has stood by him through all the years of risking injury in high school, college and league play, and the unique challenges of his coaching years to the present.
 They met and were wed back in their high school days at Llano High School.
 Their union produced two fine sons, Shane and Boyd and a grand child, Garret.
Reginald Charles "Reg" Mountford (born 1908) was a professional footballer who played for Huddersfield Town in England, and a manager of the Danish football team.
Howard Newton "Sonny" Keys was an American football offensive lineman in the National Football League from 1960 to 1965 with the Philadelphia Eagles.
 He was born in Orlando, Oklahoma, on January 24, 1935.
 Sonny was a star athlete for the Pioneers at Stillwater High School in Stillwater, Oklahoma where he played football, basketball, baseball and track.
 He was named to the Oklahoma All-State football team and played in the All Stars game and the Oil Bowl.
 His high school named Sonny "Mr. Pioneer."
 He played all positions on the line, including center.
 He went to college at Oklahoma State University in Stillwater.
 At OSU, he was part of the Cowboys championship Blue Grass Bowl game which was broadcast by Howard Cosell.
 Sonny is described as a "mauling defender" in OSU's Heritage Hall Museum in historic Gallagher-Iba Arena.
 He was drafted in the 12th round of the 1959 NFL Draft.
 He was a part of Buck Shaw's 1960 NFL Championship season.
 He played five seasons with the Eagles and was known for knowing and playing every position on the offensive line.
 His family was featured in many local advertisements including Food Fair and a dairy distributorship.
 His teammate, Tommy McDonald, cited a tough Sonny Keys in the book "They Pay Me to Catch Footballs."
 In 1965, he joined Jerry Williams of the Calgary Stampeders as an assistant coach.
 After the Stampeders went to the Canadian Grey Cup, he chose to return to the NFL as an assistant coach with the Cleveland Browns under head coach Nick Skorich.
 After his death from complications of cancer in 1971, the Philadelphia Eagles dedicated their annual Christmas card to his memory.
 His outstanding scouting and recruiting abilities made his legacy live on in the NFL.
 For example, he brought fellow OSU alum, Jerry Sherk, to the Cleveland Browns, along with other top talents.
 As part of the 1960s world championship football team, Sonny was inducted into the city of Philadelphia Sports Hall of Fame in 2006.
Huddersfield Town Association Football Club is a professional football club based in the town of Huddersfield, West Yorkshire, England.
 The team competes in the Premier League, the highest tier of English football, having been promoted by winning the 2017 Championship play-off final.
Edward A. Sauer (November 27, 1898 - February 1980) was a professional football player who played during the early years of the National Football League.
 A resident of Van Buren Township, Ohio, Sauer attended and played football for nearby Miami University.
 He made his NFL debut in 1920 with the Dayton Triangles.
 Sauer also played for the Pottsville Maroons and won the 1925 NFL Championship with the team before the title was stripped from the team due to a disputed rules violation.
 he also played with the Akron Pros and the Canton Bulldogs of the early league.
Ernest Melvin Koy (born October 22, 1942) is a former American football running back for the New York Giants of the National Football League (NFL).
 He played college football at the University of Texas from 1962 to 1964 and was drafted by the Giants in the 11th round of the 1965 NFL Draft.
 He was a member of the 1963 Texas Longhorns football team, which won a national championship, although he missed most of the season to injury and illness.
 His brother Ted Koy also played with the Longhorns and in the NFL.
 His father, Ernie Koy, played Major League Baseball from 1938 through 1942 for five teams, and also played football at Texas.