Warbird Information Exchange

I would appreciate some help from those of you "in the know". It's a sort of quiz, but no ponies involved to the winner.

I'm a partner in AT-6D 42-86241. Presently, it's painted as a Navy Trainer (long story there... probably involved alchohol) and called "Texas Twister". One of these days, we may try to restore it to more correct and appropriate colors to reflect it's true lineage.

I purchased the IARC and an accident report to learn more about the aircraft. The 1951 accident report included some grainy microfilm picture copies of the plane down in a field. In 1944 it started at Merced, Gila Bend (M2s!), Minter, Mather, then in and out of storage at South Plains and Kelley. The plane was brought back into training service at Goodfellow, then assigned to Greenville, MS at the time of the accident (July 1951) and had been stationed at Goodfellow again afterward, before heading to the Houston ANG, and then finally Davis-Monthan in 1954.

That's a long way to go to ask: Can anyone identify the insignia on the engine cowl?
Here's a partial picture of the nose:

The insignia on the cowl is the Air Training Command emblem and adorned many aircraft. Usually, it had the name of the base the aircraft was assigned to over the patch, but it wasn't universal.

You can see it applied to a Spence AFB aircraft here a little bit down the page-

http://www.spence-air-base.com/memories.html