What's typical for CVs I've seen (in math, mostly in the US) is:
Not listing references
Listing names and affiliations, and possibly some basic professional information (contact info, job title/rank)
Honestly I don't remember much about what people exactly listed in 2 because 1 is much more common nowadays and I don't really pay attention to that section anyway.
Even if someone is not in my exact sub-field, if they're a big shot in a nearby area I've probably heard of them. Or if I see they're at a top university or have some sort of distinguished professor demarcation on their letter, I'll guess that they are a top researcher. Conversely, if no one reading your letters has heard of your letter writers, it's not going to make a difference if one of your references is a Fellow of Hoity-Toity Toithoiters.
So my suggestion is don't include such titles as (1) it's not standard (at least in my experience), and (2) it will start to look silly listing loads of titles for references.