Stev Pitchford sent these great shots, taken during the spring of 1960.
When I was at USTDC, these areas on either side of Chungshan North Road were just the Headquarters Support Activity (HSA) compound. When I've written about them here, I usually refer to them as the east and west compound, but that's just to identify which side of the street I'm talking about.
I'm posting Stev's comments here, followed by mine (in brackets):
If you walked south behind the TDC compound, you came to this area. The long building at the bottom of the picture was the Bachelor Officers' Quarters. The building above the right corner of the BOQ was the base exchange. The building at the back of the parking lot was the base theater and the building at the left of the parking lot was the commissary. [The BOQ became the first of two buildings that the hostel occupied. The second building was directly behind this one. Next to the theater at the far end of the parking lot was the library. I think that there were other new buildings later on and some of those shown here may have been gone by the time I got there.]
Across Chungshan North Road from the BOQ was the MAAG compound. [This area was no longer called the MAAG compound when I was there. I'd have to go back and look at some of the other photos and maps that I've posted here, but I think that there were more structures here also.]