True, those concrete signs were a Jacksonville standard furnishing, I too remember them well in Ortega, Fairfax, 5-Points etc... This is why I like the 'new' face of Laura Street and the decorative concrete signs, a throwback to our heritage that the younger ones might have missed. There are still a few around and I'll see one every now and then.
As for Jacksonville Terminal, we owe the city big for that one...

AUGUSTA
Augusta Union... Razed...1972...One of the most exquisite buildings in the South
Atlanta Union.....Razed...1972
Atlanta Terminal..Razed....1972...almost immediately regretted and a 'new project planned' ever since
Birmingham Terminal..Razed...1969
Charlotte Southern....Razed....1962...site of current Greyhound Station
Chattanooga Union..Razed (I witnessed that sadly) ...1970's?
Savannah Union....Razed....1963
Wilmington...........Razed...1970
Memphis Union......Razed...1969

HOUSTON

FORT WORTH TEXAS PACIFIC
Memphis....Central Station...in Amtrak..use
Charlotte...Seaboard.... Building survives
Mobile....Metro Transit Offices
Tampa...Union Station restored...in Amtrak use (could be threatened by HSR)
Richmond Main Street...National Landmark
Richmond Broad Street....Science Museum of VA
Jacksonville...Convention Center
Raleigh....Office Building
Charleston Union...burned 1947
Houston Union..Interesting repurpose with a 'lean to' ball park
Dallas Union...Beautifully Restored to active Amtrak, Light Rail and Commuter Rail use.
Fort Worth......Santa Fe Union.... Repurposed event center
Fort Worth......Texas Pacific Station....Condos with attached Commuter Rail.

BIRMINGHAM

MEMPHIS
Jacksonville Traction Company served Times Square via the South Jacksonville Municipal Railways, then along the FEC RY to St. Nicholas, Spring Glen and Hogan.