1. IOR/L/MIL/14/69986 Reference (shelfmark): IOR/L/MIL/14/69986 Title: O'byrne, Dermot MacMahon Scope & Content: Highest Rank: LieutenantRegiment: I A ; R F A ; 25 C;Date of commission: (1916) Collection Area: India Office Records and Private Papers Languages: English Date Range: 1916-1948 Extent: 1 file