It's been said by one, once too often, that our church is third generation church or has survived 3 generations.
As far as I can tell, it's a first & third generation church. Where is the second generation? Many third generation's parents come not from the first generation, because the first generation's children either become apostates or 'released' to more attractive churches.
Sometimes they brag about how many generations the church has gone through...while it is actually only 1 new generation at every period.
The next new generation is neither an evangelical product nor biological product of the old generation.
It is hard to actually say there has been 2 generations. It is like saying a civilization has been wiped out eons ago and the new settlers are called the 'second' generation.