I find this chart interesting when talking about "generations".
Even though Russell is not being considered part of the faithful and discreet slave, I think this chart clearly shows how we pass from one generation to another and the fact that the "overlapping" explanation could be applied to thousands of generations (you could stretch it as far as you may want to or need to).
The chart specifies the year when the person was born and baptized. How old they were when they were baptized, the year when they were appointed to the GB or Board of Directors or whatever you may want to call it, how old they were when they were "appointed", those who resigned, the year when they died and how many years they were part of the governing body and at what age they died.
I have copied the data in a separate chart and boy, you can really play around these statistics. For instance, you can identify those who baptized before reaching 15 years old and even make projections for the current members. You can see that Mark Sanderson was born 113 years after Russell and that he was only 10 when he baptized etc.
Anyway, the point is that if we consider the term generation according to its actual definition; i.e., the average length of time between the birth of parents and the birth of their children (Merriam Webster's) which in most countries ranges from 20 to 30 years; since 1852 the world has seen nearly 8 generations. Currently, we're saying goodbye to those who were born in the 1930s (4 generations after Russell's) and there's no way in which any "scaremonger" can change that...
