That looks to be good evidence those were all Texaco. Find some older photos to see what the roof material originally was.
There was a old gas station complex on one of the Connecticut 'parkways'. Maybe the Merritt ?? It was still in use when I drove by, but that was mid 90s.
The first one was Cedar shakes. I bet the second one was too with a flat roof over the shop which was probably added later. It was replaced with green standing seam metal.