I learned quite a lot about my dad's mother's family and his dad's family that I didn't know. I even found a few facts that even my dad didn't know. We went the DNA route on my dad's father's family. That went really fast because there is a DNA group with our last name on the web.
I am so happy for you that you found a living uncle. That is wonderful!
I pray that the rest of you can find some doors no man can close in order to find other members of your family.