Great, thanks again lazycis! You don't remember these things by heart, do you? I'm not splitting hairs but trying to put my anxiousness to rest. So bear with me. If nothing else , at least we will be better informed.
I understand that association if legal may not be held against an alien. But if the alien didn't disclose (because of mistake) any association which if reported would not have affected his/her eligibility, will the fact that this association was not disclosed albeit by honest mistake be an issue?
Because it would not change the outcome of the USCIS decision, you should not worry.
BTW, I found the response from my lawyer in my archive (from Feb 2004). She wrote: "I would not include church memberships, I think they are asking more along the lines of political and professional memberships."
All I need to remember is a reference to the information. The rest is easy.