1. IOR/Z/E/4/44/O21 Reference (shelfmark): IOR/Z/E/4/44/O21 Title: O'Callaghan, Lt. Gen. The Hon. Sir Robert William, K.C.B., Minutes, Capt. E.A. Langley Collection Area: India Office Records and Private Papers Languages: English Date Range: 1835-1838 Extent: 1 entry