Question

Can anyone tell me the meaning of those bracketed numbers following the tags listed here. For example the tag 'IWW' is followed by the number 1.
It can't mean the number of times this tag is used by library members or Radical History members - so what does it mean?

It's the number of people who have given that tag to the group.

Those numbers indicate how many people have tagged this group with that particular tag. For example, one person has tagged this group 'IWW'.

Thanks, friends.