My member number is 57, your's is 11,000+, so I guess I have been around a little longer than you have, but I have never seen the pictures before.
I want to thank you for posting them, my only suggestion would have been, post one at a time, maybe close ups of some of the detail of the station or the pumps.
For instance, five out of the first six pictures are GLM Fry pumps, and since they don't have bases, they would date around 1920 give or take a year. Then we could look at the cars to determine what make and year they are, then know the possible earliest date.
Determining the earliest date for the picture, also helps to determine the date these companies use a particular sign, etc. Don't just look at a picture, copy it, blow it up, look at the detail, this is where the history is.
Another for instance, look at the pic where the car is on the rack, see the air meter in the back, it has two Texaco signs on it, and to the left is a Texaco sign I have never seen before.
Jack Sim