The JW disfellowhiping arrangement by the congregation service committee was put in place in the early 1950s. In 1954 there was a sister in our congregation who was disfellowshipped for immorality. In those days one had to wait a year before they could be reinstated. She did her time and after the year was up she was reinstated. A couple of years later some teens also got canned for the same reason.
However, in those days the disfellowshipped person could still talk to their family. Then in the 1970s during the reforms of Watchtower Vatican 2, disfellowshipped people were treated more humanly and not harshly shunned by non-family members in the congregation.
But after Ray Franz was removed from the GB, the new rules now required family to shun the disfellowshipped.