Walker was one of Hunter's first signings during his time as manager of Barnsley in the early 1980s.
Asked in the Facebook comment stream what Hunter was like as a manager, Walker wrote that he just wanted his team to play football.
His man management was “fantastic” and he was the best player in training.
Walker played two reserve team games with Hunter, who he said had a “magic left foot”.
Walker's spell at Barnsley came after he had played the 1980 season for Gisborne City in New Zealand's national league.
Back in Britain, he was keen to play at a good level until he could return to New Zealand.
That led to his appearance in a Barnsley reserve team game — a 1-1 draw against Grimsby Town in which he scored — and an invitation from Hunter to have a month's trial.
Three weeks later, Walker signed on as a professional.
The highlight of his time with Barnsley came in his second season there — the two legs of a League Cup quarterfinal against Liverpool in 1982. The first leg, at Anfield, ended 0-0. Liverpool won the second leg 3-1 but Walker had the thrill of scoring Barnsley's goal at home in front of their fans.
He played 18 first-team games in the Second Division in that 1981-82 season, but three-quarters of the way through the next season Hunter gave him a free transfer — one of Walker's biggest disappointments in the early part of his football career.
Walker finished the 1982-83 season with Third Division club Doncaster Rovers, managed at the time by one of Hunter's old teammates, former Leeds skipper and Scottish international Billy Bremner.
Walker did well, scoring five goals in 13 games, and Bremner wanted him to stay on.
But Walker was by now seeking a new challenge. Gisborne City wanted him to return, and he was hoping he could play for New Zealand in a World Cup campaign.
He arrived back halfway through the 1983 season and helped Gisborne avoid relegation and reach the Chatham Cup final. He scored two goals in a 2-2 draw with Mount Wellington in the cup final at Childers Road Reserve. The Mount won the replay in Auckland 2-0.
In 1984 Walker was named New Zealand player of the year as Gisborne City ended the season with the Air New Zealand Cup and the national league title.
The following year, Walker was Gisborne City's player of the year.
He also played for New Zealand in their unsuccessful World Cup qualifying campaign, and had the satisfaction of scoring New Zealand's most memorable goal of the series — a right-footed curler from near the left sideline that went in at the far post against Israel in Auckland.
Walker returned to England and had spells with Doncaster, Cambride United, Sheffield Wednesday, Darlington and Torquay United before he returned to Gisborne City in 1988 as player-coach.
Two-thirds of the way through the season, Walker left by mutual agreement. The the club had money worries and little prospect of big gate-takings — they were out of contention in the league, and out of the Chatham Cup.
Walker was the New Zealand national league's leading goalscorer in each of the three years he played the full season — 1980, '84 and '85.
Not long after his return to England, he suffered a cruciate ligament injury that ended his playing career when he was 30 years old.
Since then he has managed to earn a living in football more or less continuously — no mean feat in the competitive English market.
Clubs he has served include Barnsley, Leeds, Rotherham and Doncaster in capacities such as scout, coach and academy head.
He experienced the pressures of being a manager of a club vying for re-entry into English league football's lower reaches when he managed York City for a year.
More recently he coached the Notts County women's team to some notable successes.
Walker, 62 on May 1, is head of academy coaching at Grimsby Town, with the development of coaches his focus.
' The Leeds United connections for Walker do not stop at Norman Hunter and Billy Bremner. When Walker was 12, Leeds were in the queue of clubs wanting him signed on schoolboy forms.
Walker visited Leeds several times and their manager, Don Revie, said he was the most skilful 13-year-old he had seen, then added: “But he is too small”.
A nine-minute 1970 television report — posted in December on the @BBCArchive Twitter feed — focused on the pursuit of Colin Walker by 15 clubs, describing him as “the most wanted junior player in Britain”, and asking whether youngsters were well served by the system. It was followed within the week by a feature in The Telegraph catching up with Walker and charting his career in football.
