John Charles Thynne (1838-1918) (1838–1918) Parents Anna Thynne Lord John Thynne Children Agatha Lillian Thynne Joan Thynne Mary Beryl Thynne Lionel Charles Thynne Siblings Arthur Thynne Selina Charlotte Thynne William Frederick Thynne Francis John Thynne Emily Thynne Reginald Thynne George Emillus Thynne Alfred Walter Thynne Partners Mary Mac Gregor