pe,
The CVE's have a very important history that needs to be told. Not much can be found out about then, and I have to admit I have not looked to see what maybe out there now.
TL,
In the mid to late '60's there were a number of old Liberty Ship still around.
Those that I can remember were converted into surveillance vessels. (Naval Intel, and CIA types of spying)
One, the "Vanguard", was out of Port Canaveral, FL. and was used down range from the Cape by NASA during Space Launches.
Port Canaveral also had a Sub Base where the Cruses Ship Terminals are today. All of this was very hush-hush during the time period.
My Dad was the Line Maintenance Chief at Patrice AFB, south of Cocoa Beach, that made modifications to the C-135's to get the Eye-in-the-Sky view the land and sea had for a three dimensional look at things.
My best,
Blair