I might if there was a notice for a general membership meeting that wasn't from when I was still on 30 day probation... we can call the union hall for info of course, but most of us are busy at our second jobs the entire time they're open... and nobody ever told us where to find any contact info for our local...
All we got as PT loaders was a brief hand wave over the union bulletin to check the box that they informed us of its existence... I still have zero idea who my steward is, only reason I have any real connection to the union is the BA cold adding me on Facebook.
This is why you should talk to your loaders -- the most involved might be able to name the BA and that's about it, pretty much everyone else doesn't even realize there's a union informational bulletin, or that there's advocating for ourselves we can and should do. And if we, as brand new employees getting the hang of things, happen to forget the local number that we only ever saw when we signed our membership cards, we're bouncing around a mess of buggy, uninformative local websites.