i recall in the last cong i was in--in the early 70,--there was a huge growth spurt--all the new members will simply jw families having moved from other parts of the country.
Then there was quite a buzz when a new young couple, with a child started to attend. But it was no good--they were both grown up jw kids who had left in their teens to sow wild outs--got together--and came back on board to get their cards stamped before 1975.