1. Mss Eur F116/110 Reference (shelfmark): Mss Eur F116/110 Title: Scope & Content: Letters from Sir Harcourt Butler to his sister Isabel, later Lady Erle Richards; with verses by Butler and other miscellanea Dated as: 1883-92; nd Collection Area: India Office Records and Private Papers Languages: English Date Range: 1883-1892 Extent: Unspecified
2. Mss Eur F116/111 Reference (shelfmark): Mss Eur F116/111 Title: Scope & Content: Letters from Sir Harcourt Butler to his sister Isabel, Lady Erle Richards, and related papers Collection Area: India Office Records and Private Papers Languages: English Date Range: 1906-1927 Extent: Unspecified
3. Mss Eur F116/112 Reference (shelfmark): Mss Eur F116/112 Title: Scope & Content: Letters from Sir Harcourt Butler to his brother A F Norman-Butler Collection Area: India Office Records and Private Papers Languages: English Date Range: 1922-1925 Extent: Unspecified