Hi George A.R.,
I understand the problem, but it also works in the opposite direction in terms of those who have "ordinary" PLs. There, no one is trying to claim a "share" in the fame of someone who was famous (sometimes unintentionally I'm sure). However, one still exists in a big world with no way (materially speaking) of finding the people you want to re-connect with. So, in either case, you might as well get used to the fact that connecting cannot reliably be done through the usual means we seek connectivity in the material world. In fact, there may be a very low probability that any of the people you seek to contact even believe in reincarnation or are open to the concept. So, they are probably not putting themselves on forums, looking into a past lifetime, or even looking for any contacts from what (to them) would be a nonexistent PL.
So, what's left? First, most people who re-establish contact seem to receive confirmation via something beyond "physical" clues. They have a "sense" or "recognition" of someone who is part of their continuing soul group/circle. So, I'd look for that in anyone you talk to. Their memories may be non-existent or less perfect than yours, so memory tests won't work. You're just going to have to depend on your "gut" and a bit more on your intuition (which may be the same thing). The fact that you remember your PLs so well already indicates to me that you probably have more psychic abilities/intuition than the norm. So, you might want to query others on the board about ways to calm/center/meditate and expand your intuition to get a sense of who, what, where in terms of the souls you want to contact.
Second, it's always possible that your group has been strewn to the four winds, but it seems improbable that this would be the case for all. Some may have been separated for some purpose, but it seems that usually people tied together in soul groups end up fairly close to each other so that they often end up running across each other in their daily lives. (E.g., your current life sister connects to a PL). So, geographical proximity is often a factor. Think about family members, even distant ones, as well as acquaintances/friends, etc. Also, it may be that the time for a meeting may not have come for you yet, especially as you are still fairly young. So, you may not run into some of these people until more years have passed. And, it may not come until you have moved for work, marriage or some other reason. However, unless you are one of the ones who is going to remain separated from all of the rest during this lifetime, you can probably expect to run across some of them in this lifetime. Once again, recognition is more likely to be a matter of intuition than anything else, especially as they may not be believers in reincarnation or even looking for someone from a PL.
Best I can do, but I think you're actually in the same boat as the less famous. If anything you may be a bit worse off, as there are so many imitations out there. But, remember, it's a bit like Dorothy in the "Wizard of Oz". If you don't find them (sooner or later) in your own "backyard", it may be unlikely you will find them anywhere in this lifetime.
Just my thoughts on the matter.
Cordially,
S&S