Hello, I find your post very interesting! I have Gibson in the same area of Oklahoma as you. Down to Okemah and Castle. I do not recognize the Arthur Bradley Gibson you refer to. My line of Gibson come from Alabama. Do you know why the wife came to Oklahoma after his death? My grandfather was there in about in the early 20's his family came from Arkansas. So my Gibson's were there long after yours of course but maybe there was a family member there in town. My grandfather from what I was told was working for the highway dept. there. My mother was born in that area in 1928. Nan