Sometimes it is not that hard to come by, if you have “landmarks”.
I know someone who is an descendant of Korach. He knows this because he knows he is from the Shla”h HaKadosh, who knew he was from Shmuel Hanavi, who was from Korach.
Yeah, well I guess that works if you (like Dr. Pepper) are descended from someone who is famous and is already the subject of either genealogical research by others or established tradition. If, however, like me, you’re not descended from anyone famous, it’s not so easy.
The Wolf