In their day they were household names in the world of rugby league.
And the stars of yesteryear came face to face with some of their former colleagues - and with themselves - as they tried to unlock the mystery behind hundreds of old photographs.
Heritage Quay, on the University of Huddersfield campus at Queensgate, has the Rugby Football League archive and staff were struggling to fully caption many of the photos of players and matches from days gone by.
So it asked for help, and a number of former players turned up along with fans to see who they could identify.
Players included Tony Johnson, who was with Huddersfield from 1973 to 1984, David Flint, who played for Huddersfield from 1952 to 1960, and Alf Arnold, who was with Warrington from 1954 to 1958.
Ex Hull player John Maloney was also there along with John Moore, who played for Dewsbury between 1983 and 1991.
And together with the fans they helped put names to 684 photographs.
Dave Smith, Heritage Quay participation and engagement officer, said: “The team realised there were hundreds of photos of players and matches without any information attached.
“We thought it would be an interesting idea to invite people in to see what they could remember, and the event was fascinating.
“The players remembered games they had been a part of, and someone from Rochdale turned up who remembered a youngster who was a mascot at a game in the 1970s who he had been at school with.
“When we have processed all the information we will have a much better idea of who is in the pictures.”
The archive has at least 1,500 pictures going back through the decades.