RAH is an ACoA - his dad was definitely A with periods of sobriety, his mom was definitely codependent, possibly an A herself. RAH's niece told him this past year that her father/his brother seems to be showing signs of alcohol abuse...not good given family history.
My dad's dad was an A, his mom liked her alcohol, not sure I would call her an A though. I would call my dad codependent. No alcohol or drugs on my mom's side, but I would also call her codependent due to other trauma/issues within her family. I would say all of my siblings and I are codependent or have strong codependent tendencies...we have all played or are playing "rescuer" roles in our relationships.
I may be rambling, but I think it's so important to really be able to evaluate these relationships & family history to understand why we have made the choices we have and understand why we behave the way we do. To me, it's part of figuring out who we want to be and doing the work to get there.