Hi John. We are cousins and I'm so excited to see so much information on the Welch's from you! Your great-uncle, Oliver P. Welch, was my great-grandfather. He died when I was in high school, so I grew up visiting him regularly. His son, Boyd Welch, was my grandpa.
I would be so thankful for any info (and sources) that you may have. My grandparents had many old photos and documents burn in a house fire in the 70's, so I've been researching my tree from scratch, basically.