This is part of the list of Australian diarists of World War I, covering diarists with family names beginning with "O" through to "Z". List of A-G and H-N.
NameRankTown of OriginDate of enlistmentAge at enlistmentTheatresUnitNotesO'Donnell, James FrancisO'Donnell, James Francis – diary, Record Search, National Archives of Australia Retrieved 17 Jan 2014, O'Donnell, James Francis – diary, Catalogue record, State Library of New South Wales Retrieved 17 Jan 2014SergeantSydney18 May 191630France and Belgium30th BattalionServed in the 30th Battalion, 8th BrigadeO'Hare, AmbroseO'Hare, Ambrose – war diary, 12 Aug 1914 – 15 Oct 1918, Record Search, National Archives of Australia Retrieved 17 Jan 2014, O'Hare, Ambrose – war diary, 12 Aug 1914–15 Oct 1918, Catalogue record, State Library of New South Wales Retrieved 17 Jan 2014Lance SergeantHarbord15 Apr 191538New Guinea, Egypt, Gallipoli, FranceServed in the Australian Naval and Military Expeditionary Force, and later the 19th BattalionOlsson, William FrederickOlsson, William Frederick, Record Search, National Archives of Australia Retrieved 17 Jan 2014, Olsson, William Frederick, Catalogue record, State Library of New South Wales Retrieved 17 Jan 2014PrivateCoogee17 Jan 1916301st Pioneer BattalionServed in the 1st Pioneer Battalion, 4th ReinforcementOsborne, William TooveyOsborne, William Toovey – diary, Record Search, National Archives of Australia Retrieved 17 Jan 2014, Osborne, William Toovey – diary, Catalogue record, State Library of New South Wales Retrieved 17 Jan 2014Mechanical Transport DriverRockhampton, Qld29 Feb 191624France and Belgium6th Motor Transport CompanyOttery, William CharlesWar diary, 1917 Jul. 13-1919 Jul. 7. (manuscript)., Catalogue record, State Library of Victoria Retrieved 17 Jan 2014Sergeant16 Feb 1917 France60th BattalionOttway, LancelotOttway, Lancelot – diary, 3 Nov 1915 – 9 May 1916, Record Search, National Archives of Australia Retrieved 17 Jan 2014, Ottway war diaries, 3 Nov 1915 – 10 May 1919 /Lancelot McArthur Ottway, Catalogue record, State Library of New South Wales Retrieved 12 Mar 2014SergeantInverell, NSW3 Nov 191521France, BelgiumOwen, Philip ErnestOwen, Philip Ernest, Record Search, National Archives of Australia Retrieved 17 Jan 2014, Owen, Philip Ernest, Catalogue record, State Library of New South Wales Retrieved 17 Jan 2014PrivatePenshurst NSW30 Nov 1916291st Pioneer Battalion17th Infantry BattalionServed in the 1st Pioneer Battalion, 9th Reinforcement and the 17th Infantry BattalionOxman, GeorgeOxman, George (Sapper) 1885–1970, Australian War Memorial catalogue record, ID number PR00712 Retrieved 17 Jan 2014SapperWollongong, NSW27 Mar 191630 3rd Tunnelling CompanyPain, Harry OrmondPain, Harry O (Private, 24th Bn), Australian War Memorial catalogue record, ID number 3DRL/3358 Retrieved 17 Jan 2014PrivateKensington, VIC16 Mar 1915 Western Front24th BattalionPalmer, Joseph AdamPalmer, Joseph Adam. – Narrative re War Service, 1915–1919, Record Search, National Archives of Australia Retrieved 17 Jan 2014, Palmer, Joseph Adam. – Narrative re War Service, 1915–1919, Catalogue record, State Library of New South Wales Retrieved 17 Jan 2014PrivateRaymond Terrace, NSW8 Dec 191518France34th BattalionPanton, Alan ClementPanton, Alan Clement (Driver) ?-1966, Australian War Memorial catalogue record, ID number PR00912 Retrieved 17 Jan 2014DriverMolonglo, ACT19 Aug 1914 Royal Australian Army Service CorpsParker, Harold HillDiary, 1916–1917. (manuscript), Catalogue record, State Library of Victoria Retrieved 17 Jan 2014PrivateEmerald, VIC1915 France58th BattalionKilled in action on 26 Sep 1917 at Ypres.Parkes, Stanley ThomasParkes, Stanley Thomas (Captain) 1894–1986, Australian War Memorial catalogue record, ID number PR01077 Retrieved 17 Jan 2014CaptainMelbourne, VICGallipoli3rd Light Horse Field AmbulanceParramore, George WilliamParramore, George William (Captain), Australian War Memorial catalogue record, ID number PR00212 Retrieved 17 Jan 2014Captain17 Jul 1917 France, BelgiumRoyal Australian Army Medical CorpsParsons, Henry JosephParsons, Henry Joseph, Record Search, National Archives of Australia Retrieved 17 Jan 2014, Series 02: Henry Joseph Parsons war diaries and papers, 1 Jul 1916 – 30 Jul 1919 Retrieved 17 Jan 2014Leichhardt, NSW2 Jul 191622France13th BattalionServed in the 13th Battalion, 21st Reinforcement until taken prisoner at Reincourt on 11 Apr 1917 during the First Battle of BullecourtPartridge, Darrell JohnPartridge, Darrell John – Diary, 1914, & War Service Narrative, 1915 -1917, Record Search, National Archives of Australia Retrieved 17 Jan 2014, Partridge, Darrell John – Diary, 1914, & War Service Narrative, 1915 -1917, Catalogue record, State Library of New South Wales Retrieved 17 Jan 2014SergeantDungog28 Aug 191423Egypt, Gallipoli, FranceAustralian Army Medical CorpsAwarded the Military Medal for his service at the Battle of BullecourtPaterson, Andrew Barton (Banjo)Paterson, A B (Banjo), Catalogue record, State Library of New South Wales Retrieved 17 Jan 2014Sydney, NSW13 Oct 191549Middle EastIn command of the Australian Remount Squadron from Oct 1916 to mid-1919Patton, James ValentinePapers, 1916–1947. (manuscript)., Catalogue record, State Library of Victoria Retrieved 17 Jan 2014France, PalestineArmy chaplainPaull, H.Private Papers of H Paull, catalogue record from the Imperial War Museum Retrieved 17 Jan 2014Gallipoli, France, Belgium1st Australian Field Artillery3rd Brigade Ammunition Column1st Divisional Ammunition Column36th Battery Australian Heavy ArtilleryServed in the 1st Australian Field Artillery, the 3rd Brigade Ammunition Column, the 3rd Section, 1st Divisional Ammunition Column, and the 36th Battery Australian Heavy ArtilleryPaull, Peter RaphaelPaull, Peter Raphael (Captain, 16th Bn AIF b: 1891), Australian War Memorial catalogue record, ID number PR88/137 Retrieved 17 Jan 2014Captain22 Sep 1914 Gallipoli16th BattalionPeach, William EdwardPeach, William Edward MM (Sergeant, b: 1896 d: 1966), Australian War Memorial catalogue record, ID number PR00597 Retrieved 17 Jan 2014SergeantBeechworth, VIC 7th BattalionAwarded the Military Medal Peacock, Ashley RoydenPeacock, Ashley Royden, MM (Private), Australian War Memorial catalogue record, ID number PR01416 Retrieved 17 Jan 2014PrivateFrance13th BattalionPearce, Maurice EvelynPearce, Maurice Evelyn – diary, 4 Aug 1914 – 1 Sep 1916, Record Search, National Archives of Australia Retrieved 17 Jan 2014, Pearce, Maurice Evelyn – diary, 4 Aug 1914-1 Sep 1916, Catalogue record, State Library of New South Wales Retrieved 17 Jan 20142nd LieutenantOrange, NSW8 Mar 191525Egypt, Gallipoli, Sinai peninsula1st Light Horse BrigadePearce, Norman LeePearce, Norman Lee, Record Search, National Archives of Australia Retrieved 17 Jan 2014, Pearce, Norman Lee, Catalogue record, State Library of New South Wales Retrieved 17 Jan 2014GunnerHillston, NSW6 Apr 191523Gallipoli, France5th Field Ambulance Unit13th Field Artillery BrigadeFought at the Battle of the Somme. He was killed on 20 Nov 1916Pearson, WilliamPearson, William – diary, 1 May-13 Nov 1916, Record Search, National Archives of Australia Retrieved 17 Jan 2014, Pearson diaries, 1 May 1916 – 2 Nov 1918 / William Pearson, Catalogue record, State Library of New South Wales Retrieved 12 Mar 2014Lance CorporalLeichhardt, NSW14 Aug 191522France, BelgiumPenty, Robert E.Penty, Robert Eric (Private), d.1916, Australian War Memorial catalogue record, ID number 3DRL/4115 Retrieved 17 Jan 2014PrivateFrance18th BattalionDied in 1916Perry, Stanley LlewellynPerry, Stanley Llewellyn MC, DSO, Lieutenant Colonel, Australian War Memorial catalogue record, ID number PR91/133 Retrieved 17 Jan 2014Lieutenant ColonelSydney, NSWMiddle East, France45th BattalionPeters, Charles HaroldPeters, Charles Harold, Record Search, National Archives of Australia Retrieved 17 Jan 2014, Peters, Charles Harold, Catalogue record, State Library of New South Wales Retrieved 17 Jan 2014CaptainHeidelberg, Victoria21 Jul 191627France38th BattalionAwarded the Military Cross and Bar for bravery while serving at Armentières and his actions while serving at the Hindenburg LinePetersen, JensPetersen, Jens – Pte. Jens Petersen's statement of the Battle of Mont St Quentin, 9 Feb 1919_7, Record Search, National Archives of Australia Retrieved 17 Jan 2014, Petersen, Jens – Pte. Jens Petersen's statement of the Battle of Mont St Quentin, 9 Feb 1919_7, Catalogue record, State Library of New South Wales Retrieved 17 Jan 2014PrivatePaddington26 Oct 191725FrancePeterson, WilliamPeterson, William – diary, 1 Jan 1916 – 13 Aug 1916, Record Search, National Archives of Australia Retrieved 17 Jan 2014, Peterson, William – diary, 1 Jan 1916-13 Aug 1916, Catalogue record, State Library of New South Wales Retrieved 17 Jan 2014SergeantWarwick, Qld23 Aug 191433Egypt, Gallipoli, Sinai peninsula2nd Light Horse BrigadeServed in the 2nd Light Horse Brigade until wounded in the Battle of Rafa on 16 Apr 1917Pflaum, Theodor MiltonPflaum, Theodor Milton (Lieutenant), 1895 – 1917, Australian War Memorial catalogue record, ID number PR04009 Retrieved 17 Jan 2014Second LieutenantBirdwood, SA21 Jul 191519France32nd BattalionPhelps, Edwin WalterPhelps, Edwin Walter – war narrative, 24 Aug 1916 – 22 Dec 1918, Record Search, National Archives of Australia Retrieved 17 Jan 2014, Phelps, Edwin Walter – war narrative, 24 Aug 1916–22 Dec 1918, Catalogue record, State Library of New South Wales Retrieved 17 Jan 2014PrivateRyde, NSW20 Apr 191615France, Germany (POW)45th Battalion13th BattalionServed in the 45th and 13th Battalions until wounded and taken prisoner in Apr 1917Pickup, Robert SamuelPickup, Robert Samuel (Lieutenant), MC, 1888 -, Australian War Memorial catalogue record, ID number PR88/090 Retrieved 17 Jan 2014CaptainAurburn, NSW18 Aug 191516Egypt, France45th BattalionPidcock, John WilliamPidcock, John William (Lieutenant) MC, Australian War Memorial catalogue record, ID number PR01473 Retrieved 17 Jan 2014LieutenantTatham, NSW1 Sep 191421Gallipoli, Egypt4th Division42nd Battery Australian Field ArtilleryRoyal Australian Army Medical CorpsPillow, Roy NelsonPillow, Roy Nelson (Cadet), Australian War Memorial catalogue record, ID number PR03411 Retrieved 17 Jan 2014CadetGeelong, VIC6 Aug 191520 3rd Casualty Clearing StationAustralian Flying CorpsPitcher, Albert JamesPitcher, Albert James (Sergeant), 1892 – 1966, Australian War Memorial catalogue record, ID number PR01412 Retrieved 17 Jan 2014Sergeant13 Mar 1915 Egypt, Gallipoli24th BattalionPitman, Elsie C. W.Papers, 1860–(199-?) (manuscript)., Catalogue record, State Library of Victoria Retrieved 17 Jan 2014Plummer, Horace Sydney "Syd"Plummer, Horace S (Lieutenant Colonel, 6th Bn, Cmf), Australian War Memorial catalogue record, ID number 3DRL/7131 Retrieved 17 Jan 2014Colonel6th BattalionPoate, Hugh Raymond GuyPoate, Hugh R (Lieutenant Colonel, b.1884 – d.1961), Australian War Memorial catalogue record, ID number 2DRL/1225 Retrieved 17 Jan 2014Lieutenant Colonel24 Aug 191420Gallipoli1st Field AmbulancePockley, Brian Coldin-AntillPockley, Brian Coldin, Record Search, National Archives of Australia Retrieved 17 Jan 2014, Pockley, Brian Coldin, Catalogue record, State Library of New South Wales Retrieved 17 Jan 2014CaptainNorth Sydney17 Aug 191424Killed in action on 11 Sep 1914 while serving in the Australian Naval and Military Expeditionary Force. He was the first Australian officer to be killed in action during World War IPointon, Percy CharlesPointon, Percy Charles, Australian War Memorial catalogue record, ID number PR00966 Retrieved 17 Jan 201411th Light Horse RegimentPolinelli, L.Polinelli, L (Private, 21st Battalion, AIF), Australian War Memorial catalogue record, ID number PR86/072 Retrieved 17 Jan 2014PrivateFrance21st BattalionPollitt, William AlexanderPollitt, William Alexander, Driver, b: 1891, Australian War Memorial catalogue record, ID number PR91/065 Retrieved 17 Jan 2014Driver1st Field A