How did decompression tables change in the 1960s?

[divehistory]

I'm trying to do some research into how decompression tables changed in the 1960s, and I have found some sites that refer to how diving activity evolves during this period, but not specifically any information on diving tables.
I am wondering if anyone here might know how tables changed from say mid-1950s to 1965. It seems the decompression times increased, but I can't seem to find any examples of the commonly accepted tables from that period.
Thank you for any information you might have!

 

[Rooster59]

I've read some stuff on the development of tables here:

https://www.navsea.navy.mil/LinkClick.aspx?fileticket=4EBCITJyNvI=&tabid=20538&portalid=103&mid=48858

Document is huge, and I cant remember where. Some help, huh?