Sam Duren has been a regular here since the board was launched in 2008. He still posts under another name. I can’t think of anyone better at covering high school basketball in Oklahoma. His site has been near the top of my favorites list for many years.
He played at Covington/Douglas. Never got to see him play but his teammate Gloire Houmba (also at Sunrise) is a pretty good point guard. Unfortunately on the short side. And he's at least 4-5 years older than his classification. Dude was about 20 when he played as a freshman. But he absolutely destroyed everyone in class B.
Oyona was 6'9" when he was in 7th grade. Pretty sure he's a bit older than his classification as well.