I made a simple little video of west Sugar Land using a Fort Bend County aerial taken on March 6, 1952 and a current Google Satellite image. I didn't spend a lot of time overlaying the images precisely, but they are close enough that you can make the transition.
I recently went with John Frierson and his sister Cindy to the old location of Flanagan Road and the site of their family home, which was the original Buck Flanagan family home. It's gone now - so is the road. There's just a trace of the road bed in the field. We haven't found the exact site of their home, but we know the general location. It's within the trees that appear on the Google image.