1. IOR/L/MIL/14/2257 Reference (shelfmark): IOR/L/MIL/14/2257 Title: O'callaghan, Cornelius Howden Denis Scope & Content: Number: IA 692Highest Rank: BrigadierRegiment: I A ; 5 Bu Bde ; 2 Punjab Regiment;Date of commission: 4 Mar 1915Date of release: 22 Mar 1947 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1915-1947 Extent: 1 file