It was not available when the alleged grave robbery occurred in 1918.

It was not available when the 1933 Skull and Bones centennial document described the theft.

It was not available when Ned Anderson arranged his 1986 meeting in New York.

It is available now.

If samples from any human remains held by Skull and Bones could be tested, and if known descendants of Geronimo provided comparative samples, the factual question — are these Geronimo’s remains? — could be addressed with genetic evidence.

Not answered with absolute certainty, because DNA analysis of historical remains has limits, but addressed with the kind of scientific evidence that is far more reliable than legend, disputed documents, or what one party to a meeting believed about a skull in a glass case.