ALL of Colon was part of the Panama Canal Zone. As you get into the 1945 era, there are parts of the area that were went from military-use to canal-use, and eventually flipped over to the Panama gov’t.
Go and view the map of the complete Canal Zone:https://upload.wikimedia.org/wikipedia/commons/0/0c/CanalZone.png
There are people who are trying to view different parts of Colon from 1960s or 1980s....but in the era prior to 1945, it was a fairly large chunk of land which was administered and run by the US gov’t.
“ALL of Colon was part of the Panama Canal Zone. As you get into the 1945 era, there are parts of the area that were went from military-use to canal-use, and eventually flipped over to the Panama gov’t.”
You are mistaken. The Republic of Panama had the Colon Corridor running through the Canal Zone and connecting their sovereign territory Colon to the rest of the Republic of Panama. This corridor ran along the southern perimeter of the U.S. Navy Coco Solo South installation. A piece of the Reservation Line can be seen in the following map:
http://panamaliving.com/CSmap2.jpg
The Colon Hospital was located on the northern shore of the City of Colon in the sovereign territory of the Republic of Panama. See the confirmation in the postcards dating from those years.
http://www.coloncity.com/colonhospital.html
Also see the Panama Canal Treaty Map depicting the Colon Corridor.
http://members.tripod.com/william_h_ormsbee/treaty_trans_summ_mil_p01.htm
