Poss. HM George I's 18-Great Grandmother. Poss. HRE Ferdinand I's 16-Great Grandmother. Poss. HRE Charles VI's 20-Great Grandmother. Poss. U.S. President [HAYES]'s 19-Great Grandmother. Poss. PM Churchill's 24-Great Grandmother. Poss. HM Margrethe II's 25-Great Grandmother. Poss. Agnes Harris's 18-Great Grandmother. Poss. `Osawatomie' Brown's 21-Great Grandmother.