During this period the club did not employ a 'manager' but Nicholson undertook many of the duties currently associated with a modern-day football manager.
Although the team was coached by a trainer and selected by a committee, Nicholson ran the club on a day-to-day basis, dealing with transfers and other finances, liaising with the Football Association and looking after the players' general affairs.
Regarded as one of the most respected men in football at the time he had a vast number of contacts throughout the game and was an expert in the rules, laws and regulations of the sport.
Despite never holding the post of manager at The Blades, he was offered just such a position at Manchester City in 1926 but turned it down, preferring to remain in his home town.
[1] Nicholson died in 1932 after being knocked down by a lorry whilst crossing the road outside Sheffield Midland Station on his way to join the team, who were heading off to Birmingham to play a match against Aston Villa.