Leicester Campbell street

[joeybuck616]

Hi all,
I'm searching for staff that may have worked at Campbell Street in Leicester around the 70s!
My great grandfather worked there and rumour had it a large trunk full of family history was given to a friend who worked with him who was from Market Harborough, I know it's like searching for a needle in a haystack, but if you worked there and may have known Ted Bannister, you may know who this mystery friend is! If not, any photos from the time would also be much appreciated!