Thanks for the invite. I am an Okie, myself. Born and raised in Woodward and Dewey counties.
Yes, I started out as an 11B, right out of Ft. Polk, LA in Dec 1975. Was in the Reception Station when this squared away Corporal came through, looking for volunteers for a non-mech Infantry unit, that rode helicopters!! Jumped on that with both feet! We were 11B until some unknown person in the Pentagon decided that Cavalry units couldn't have Infantry in them. So we all became 19D. By the way, D Troop stood down and was stood up as HHT 4/10!