Didn’t goalkeepers use yellow shirts around that period? Green goalkeeper jerseys came a little later?
The cover photo on the book does have a sepia tone, but that I think is to make it authentic monochrome rather than give a hint of what he thought the colour was,
Before 1909 goalkeepers wore the same colours as the rest of the team, but in 1909 rules were introduced to identify them. At first they had to be red, blue or white, with green being added a few years later. Most teams adopted green because there were fewer teams in that colour to clash with, but obviously Boro would be red or blue. I have started work on colourising this group and am going with red for the keeper.
Yellow was restricted to the England national team, although League games in Scotland tended to have yellow keepers jumpers.
This only applied to the Football League, so some of you may have seen keepers in yellow jerseys in Latics’ non-league days.
