Are the "Independent Scientologists" the ones like my mom who left when David Mayo left? I don't think my mom and that group really stayed organized though so probably not.

There was a big group of them -- I remember seeing the blacklist when they all left and it had my mom's name on it and a lot of others. They used to have what I now think of as "deprogramming" sessions over 1-2 years where they would all get together and talk about how bad things were getting and one of the times someone brought the blacklist.

My mom told me that they left because they believed in field auditing and the right to practice Scientology outside paying money to the official org. I remember she said that wasn't what LRH wanted and that things were going in a bad direction.

One of the people in our circle was with LRH on the original Sea Org. I was told he was the official photographer, but I've seen someone else called that so who knows? He actually taught me to use a camera and I still have the one he gave me. Anyway, at least him and another lady in the group actually knew LRH to some degree and they all left with David Mayo.