Henry Barrow was Clyde's father. The picture is of his service station on Singleton in Dallas. The building still exists today, although it has been expanded and modified so that it hardly looks anything like it did in the photo.
The Barrow family lived in the three room hose out back.
Here is Henry standing in front of the station shortly after Clyde's death:
Here is the way it looks today. The front part may have been completely replaced at some point. The gas station was in business when I was living nearby in the 1970's.
Singleton avenue leads to the old Singleton Viaduct that crosses the Trinity river into downtown Dallas. Here's another photo of the Barrow service station from maybe 1938:
A view of the Singleton viaduct about 1/2 mile to the east of the Barrow station:
I did some Googling:
The period photos and the current photos of the service station remind me of the story of the guy who is selling George Washington's hatchet - it's all original except the handle and blade were changed at one point in time.
The current photos show a brick structure that is completely different from the period photos - single door vs double door, service bay vs no service bay, different placement of windows. Even the awning is substantially different.
I understand that things can be modified and changed over the years, but it appears to be a wholesale replacement or perhaps not the Barrow service station at all???
https://www.google.com/search?q=barrow+service+station+dallas&client=safari&rls= en&biw=1228&bih=686&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjNtLvn9-rJAhUFRyYKHTCmA vwQ_AUICCgD#imgrc=_
The address is correct, but yes, most of the front of the building has been replaced with something slightly bigger. The house portion in the back appears to be mostly the original structure but obviously little of the interior would be like it was 85 years ago when this photo was taken of Clyde's parents.