My other grandfather lived to 93 so I tried to think of questions to ask him while he was still alive. On one of my paternal grandmother's lines I can trace back to about 1200 but on my maternal grandmother's side I can only get back to her grandfathers (both immigrants and I don't know their exact places of birth).
I think it's kind of cool to have been able to join the SAR while being just a third-generation American on one side.
I don't know if my dad ever joined SAR. I have not. My wife researched diligently for her DAR qualifications and was rejected for having a Quaker in her lineage. After months of effort, she just dropped it entirely.