Bloody hell this might be it!!!! It's on UK Ebay and lists contents which rings a bell, I am 95% sure this is it. I will buy and report back when i get it. If this is it I will be eternally grateful!!
It contains short bios of several dozen fighters, mostly no more than 4 pages for each man and that includes photos occupying nearly half the space.
OK so a quick update as I finally got the book on Ebay which @Senya13 correctly identified! I have not read it in years but this is definitely the same book I had as a youngster, England's Boxing Heroes, by Frank McGhee. I can certainly recommend this for any boxing book collectors. It has an excellent range of fighters covered, with the more obscure guys the most memorable. It contained a bunch of fighters I could not remember being in the book and who I had totally forgotten about including Johnny Pritchett, Matt Wells, Teddy Baldock. Each fighters gets a few pages and there are some good pictures. McGhee focuses on giving us a flavour of the fighter as a personality rather than giving an exact blow by blow history. There are a few historical errors, nothing significant, and McGhee does have a slightly eccentric writing style that may take some getting used to for younger readers. It goes up to Frank Bruno and Lloyd Honeyghan but to about midway through their careers. Some of the older guys have such long careers you wish there were a few more pages devoted to them. It would have been perhaps better if it had been Britain's boxing heroes rather than just England's and brought in some of our colourful Scottish, Welsh and Northern Irish champs, who in reality would pretty much make up the top 20 of UK fighters. Missing are Driscoll, Welsh, Wilde, Watt, McGuigan, Buchanan, McGowern etc etc. Many of these guys are covered in Henry Cooper's 100 Greatest Boxers book which I also had as a kid and am going to track down as well. Thanks for all your help!