Hello Steve,
I heard Mary Kay Letourneau, the teacher who got "busy" with her 6th grade student, has just married him. What do you suppose the odds are, that they were very, very close in a previous life, and something tragic happened to one of them in that life?
So in this life, there was no resisting each other, even if they couldn't time their "arrivals" just right.
Anything is possible!
One of the issues with mankind today is that people are too quick to judge others based both by their own standards and expectations, and without any concept of the greater realities.
We are not bound by space or time. We can incarnate into any physical, temporal time period that is most appropriate for our evolution. Beyond Earth there is only the "Eternal Now" wherever everything that has happened, is happening or will happen relative to Earth time already exists. That is why we can "view" the future. The future is only a temporal concept when in fact everything is
now.
It is quite possible that the people you mention were associated in a previous life. In fact is not uncommon for people to remain close through successive lives whether they realise it or not. "Soul mates" are of course an example of this. Sometimes parents reincarnate as their children's children.
In the case of the people you mention, we would not know, but what you suggest is definitely very possible.
Best regards,
Adrian.