Whether regular inspections of the graves would have detected a disturbance from a night-time operation is uncertain.

Fort Sill’s records from the relevant period — May 1918 — might contain information about the presence of Yale students at the installation, about any incidents reported in the cemetery area, or about any other relevant events.

Whether these records have been systematically searched for evidence relevant to the skull mystery is not documented in the publicly available sources.

The Army has jurisdiction over the Fort Sill installation and the cemetery within it.

Any examination of Geronimo’s grave using non-invasive technology — ground-penetrating radar, for example — would require Army cooperation.