His granddaughter would have already passed on. Even his oldest descendants are at least great grandsons and daughters. And they are all very well known, none with that name. They're all on the Mescalero rez, most of them with Geronimo as a surname.
The two main ceremonies on the Mescalero rez are Kinaalda, when girls become women at adolescence, and blessing the mescal pits at dusk. I've never heard of this one, or any ceremony like what you describe. I suppose a Navajo sand painting might have some vague very general similarities.
Geronimo was Chiricahua and most of them are on Fort Sill or San Carlos rez. I suppose it's possible someone could be doing this and claiming relation or is a more distant relation.
Do you have sources on this? Where did you hear it?
