Question: What type of club  did the player who served as a linesman Footbal League and as a referee in the Lancashire Combination?
Context: Frederick Edward "Fred" Valentine (1909 – 1981) was an English professional footballer who played as an outside forward for Oldham Athletic in the Footbal League. James Joseph Crabtree MC (December 1895 – 1965) was an English professional football goalkeeper who played in the Football League for Rochdale, Blackburn Rovers and Accrington Stanley.  He later served as a linesman in the Football League and as a referee in the Lancashire Combination. Manchester North End F.C. was an association football club based in Manchester, England.  The club was founded in 1922 as New Cross F.C. and joined the Lancashire Combination, before changing its name the following year.  In the 1924–25 season, Manchester North End left the Lancashire Combination and entered the Cheshire County League, where they remained until 1939, when the club folded.  The club reformed under the name North End FC in 2011 before changing their name to Manchester North End FC in 2016. Tranmere Rovers Football Club is an English association football club based in Birkenhead, Wirral.  Founded in 1884, they played their first games under the name Belmont F.C.; in 1885, before the start of their second season, they adopted the name Tranmere Rovers.  In 1889, Tranmere entered the West Lancashire League, and progressed through the Combination, the Lancashire Combination and the Central League.  On 27 August 1921, as founder members of Division Three North, they won their first Football League match 4–1 against Crewe Alexandra at Prenton Park.  Tranmere played in the Football League ever since then, with the exception of the war years 1939-1946, and right up until 2015 at which time they were relegated from the Football League down to the National League.  Their highest league finish was fourth in the First Division which, at the time, was the second tier of the league pyramid, in the 1992–93 season. The ECHL Hall of Fame was established by the ECHL ice hockey league in 2008.  The ECHL Board of Governors created the ECHL Hall of Fame to recognize the achievements of players, coaches, and personnel who dedicated their careers to the league.  Hall of Fame members are selected in four categories: Player, Developmental Player, Builder, and Referee/Linesman.  Players must have concluded their career as an active player for a minimum of three playing seasons, though not continuous or full seasons.  Developmental Players must have begun their career in the ECHL and went on to a distinguished career in the NHL, playing a minimum of 260 regular season games in the NHL, AHL and ECHL.  Builders may be active or inactive whereas Referee/Linesman must have concluded their active officiating career for a minimum of three playing seasons. Northwich Victoria Football Club are an English football club based in Northwich, Cheshire.  They are currently competing in the Northern Premier League Premier Division.  The club was founded in 1874, playing challenge matches organised on an ad hoc basis until the 1877 season, when they entered the Welsh Cup for the first time.  The club entered two other competitions (The Cheshire Senior Cup in 1879 and the FA Cup in 1882) before finally playing league football in The Combination in 1890, for which they were founding members.  They became founding members of the Football League Second Division in 1892, where the club remained for two seasons, and are the only two seasons in the club's history where they have played professionally and in the Football League.  In the 1894 season, they returned to amateur, regional football when they rejoined the Combination.  Two season in the Cheshire League followed until the turn of the century, when Northwich joined the Manchester League in 1900, when they finished as runners-up.  Two seasons later, for the first time, they won a league trophy as winners of the Manchester League in 1902.  They departed the Manchester League in 1912 when they joined the second division of the Lancashire Combination, finishing 4th in the first season, which ensured their promotion to the first division.  In 1919, they became founder members of the Cheshire County League, where they remained until the 1968 season, winning the league just once in the 1956–57 season.  Following their departure from the Cheshire County League, they became founder members of the Northern Premier League.  In 1979, they founded yet another league, the Alliance Premier League (now known as the Football Conference, where they remained until their relegation in the 2004–05 season.  During their time in the Conference, they won the FA Trophy in the 1983–84 season, and finished runners-up twice in 1982 and 1995.  They returned to the Conference National at their first attempt when they won the Conference North in the 2005–06 season.  However, ongoing financial issues in the latter part of the 2000s saw them relegated twice in two season; in 2009 they were relegated back to the Conference North and then again the following season to the Northern Premier League Premier Division, where they are competing for the current season. Robert Matthewson (13 April 1930 – 10 November 2000) was an English footballer and FIFA referee.  Born in Newcastle upon Tyne, Matthewson had a spell playing for the Byker Youth Club's football team before he was signed by Bolton Wanderers.  After six appearances for Bolton in six seasons, including three appearances in the Football League, Matthewson was allowed to leave the club on a free transfer by manager Bill Ridding.  He then joined Lincoln City but never played a league game for them.  He then entered National Service.  Upon his return an engineering colleague persuaded him to take up refereeing back in Bolton in 1958-1959, progressing through local leagues to the Lancashire Combination and Northern Premier League. Nelson F.C. is an English semi-professional association football club based in the town of Nelson, Lancashire.  Founded in 1881, the club played friendly matches for its first eight years, before becoming one of the founder members of the Lancashire League in 1889.  The team won the Lancashire League title in 1896, but disbanded in late 1898 and was suspended by the Lancashire Football Association following incidents involving fans at an FA Cup defeat at Southport Central.  Nelson was accepted back into the Lancashire League the following season and in 1901, they joined the Lancashire Combination.  Between 1915 and 1918, the team ceased play for the First World War.  When competitive football restarted in England in 1919, they joined the Central League.  Two seasons later, the club was invited to be one of the founder teams of the Football League Third Division North.  They won the league in 1923, gaining promotion to the Football League Second Division.  However, they stayed there for just one season, finishing second-bottom of the league and being relegated back to the Third Division. Blackburn Rovers Football Club is a professional association football club based in Blackburn, Lancashire, England.  The club competes in League One, the third tier of the English football league system, following relegation from the Championship at the conclusion of the 2016–17 season. Keith Edwin Walker was a former English association football referee.  He was born in Manchester but moved to Blackpool where he started his refereeing career after playing as a goalkeeper for Lytham in the Lancashire Combination.  After officiating in the Lancashire Combination, Irish League and Central League he became a Football League linesman in 1959 and was promoted to the Referees List two years later aged only 30.  He had a season based in Preston (1965-1966) before in 1967 moving from Blackpool to the village of Bearsted near Maidstone, Kent to pursue his career as a Senior Educational Administrative Officer for Kent County Council.  He officiated the Northern Irish Cup Final 1968 in which Crusaders F.C. from Belfast defeated their city rivals Linfield F.C. 2-0.
Answer: professional association football