The confirmation was real. The knowledge was older.
“My mother knew it,” LaPointe has said. “That’s how I knew it.”
—
## Conclusion: The Science Caught Up With the Family
In the autumn of 2021, a study published in a peer-reviewed scientific journal did something that had not been done before: it used probabilistic analysis of degraded ancient DNA to support a family’s claimed biological relationship to a historical figure across three generations.
The study was scientifically significant. It extended the reach of ancient DNA kinship analysis to a degree of relationship — great-grandparent — that existing methods had not previously been able to address reliably in highly degraded material. It demonstrated a probabilistic framework that can work with short, fragmentary genetic data and that accounts for population-level shared ancestry in a way that makes the results interpretable. It opened the door to similar analyses in other historical and forensic contexts.
What it did not do was discover Ernie LaPointe’s connection to Tatanka-Iyotanka. That connection was known to his family before he was born. It was preserved by his mother, who died when he was ten but who made sure he would know. It was transmitted through the ceremonies and practices that LaPointe has maintained throughout his adult life. It was documented in the records that the Smithsonian Institution reviewed for five years before returning the hair and leggings in 2007.
The DNA study added a molecular dimension to evidence that already existed in four other forms. It satisfied a standard of proof that skeptics had demanded — the scientific confirmation that oral tradition and documentary records, in the dominant culture’s epistemic framework, could not by themselves provide. And it established a genetic profile that may eventually serve a practical purpose: as the comparison baseline for confirming, if and when an exhumation ever happens, whether the bones at Mobridge are actually those of Sitting Bull.