That's the one. The Ag-1 (
https://en.wikipedia.org/wiki/Texas_A%26M_College_Ag-1)
Designed by Fred Weick of Ercoupe fame* (
https://en.wikipedia.org/wiki/Fred_Weick) when he was at Texas A&M. He subsequently designed the Ag-3, which morphed into the Pawnee. Obviously, Redwoods were hard to come by in College Station!
I found these aircraft while looking for information on the Pawnee, in advance of flying my gliding club's new towplane!
dux has control.
* PS Fred had many other achievements that are not as well known as the Ercoupe. I didn't know until I read the Wiki article, that he was involved in the development of the NACA cowl -
http://naca.central.cranfield.ac.uk/...aca-tn-301.pdf