| Daniel W. O'Brian | | Fitter/Fitting Shop |
| Michael K. O'Brian | | Grinder/Polisher/Chrome Plating |
| Dr Timothy J. O'Brian | | Analyst Programmer/Computer |
| Denis M. O'Carroll | | Rough Grinder/Electro Plating |
| M. O'Connell | | Attendant/Canteen |
| Charles O'Connor | | Labourer/Spares |
| Alan O'Donnell | | Commercial Manager |
| Kenneth O'Donnell | | Fitter |
| R. O'Donnell | | Senior Sales Correspondent |
| Padraic G. O'Gorman | | Student Apprentice |
| P.G. O'Halloran | | Special Projects |
| P.J. O'Leary | | Vacation Trainee |
| James F. O'Mahoney | | Deputy Manager-Chemical & Rubber |
| Heather Joan O'Mahony (nee Bradley) | |
Bakery Sales |
| Kevin O'Meara | | Fitter/Fitting Shop |
| Michael J. O'Meara | | Foreman/Maintenance |
| Mick O'Meara | | Maintenance Foreman |
| S. O'Neal | | Apprentice |
| Kevin B. O'Neill | | Student Apprentice |
| Miss E.M.T. O'Rourke | | Senior Sales Ledger Clerk |
| David P.J. O'Sullivan | | Industrial Trainee/Experimental |
| Peter J. O'Sullivan | | Production Electrician/Bretton Electronics |
| S. Oakes | | Data Control Clerk |
| Gary W. Oakley | | Sales Ledger Clerk/Bky, Foundry, Print & Spares |
| Miss Jenny A.K. Oakley | | Purchase Ledger |
| D.J. Obee | | Escalators |
| Vincent Oblyschuk | | Production Electrician/Bisc Div |
| Neville Odain | | Chrome Plater |
| Jeff Odam | | Jig & Tool Draughtsman |
| Miss S. Odams | | Press Demonstrator/Laundry Sales |
| John R. Odell | | Student Apprentice |
| Miss N. Odhanji | | Clerk/Reprographic |
| Hitesh H. Odhavji | | Progress Asst/Central Manuf Service |
| Simon C. Offley | | Clerk/Central Accounts |
| Mark A. Ogden | | Vacation Trainee |
| S.P. Ogden | | Clerk/Typist |
| David Ogilvie | | Director |
| R.C. Oldham | | Driller - Willesden |
| A. Oldroyd | | Security |
| H. Olivant | | Fitter |
| Andrew J. Oliver | | Progress Chaser/FES After Sale Service |
| A.D. Oliver | | Apprentice |
| Douglas F. Oliver | | Labourer |
| Miss L.A. Oliver | | Attendant/Canteen |
| P.L. "Les" Oliver | | Project Engineer |
| Stephen Oliver | | Field Engineering |
| Arthur Olroyd | | Labourer |
| A. Olsen | | Inspector |
| Chris Olsen | | Manufacturing Cell Manager |
| M.E. Olsen | | |
| David S. Olson | | Inspector/Disk Cell |
| Stewart G. Olson | | Machine Shop Foreman |
| Iwan Onyskiw | | Slinger |
| Philip M. Oram | | Cost Clerk |
| Kevin Orbell | | Commercial Section Leader |
| Miss L. Orbell | | Cost Clerk |
| John Orchard | | Security |
| Robert S. Orford | | Miller/M/c Shop |
| Corrado Orlando | | General Labourer/Heat Treatment |
| Geoffrey V. Orpwood | | Driller/M/c Shop |
| William T. "Bill" Orr | | Field Engineering |
| D.S. Orson | | Apprentice |
| Graham G. Osborne | | Turner/M/c Shop |
| Harold W. "Jim" Osborne | | Painter |
| Neil V. Osborne | | Turner/Heavy Lathes/M/c Shop |
| Stanley L. Osborne | | Escalators |
| William A. Osborne | | Driller |
| Edward J. "Ted" Oselton | | Asst Buyer (Elect)/Purchasing |
| John Osker | | Driller |
| R. Osker | | Attendant/Canteen |
| T.D. Oughton | | Apprentice |
| John Ovens | | Security |
| E.M.T. Overend (nee Gutteridge) | | Calculating M/c Operator |
| David A. Overend | | Inspector/Sub-Assembly |
| John Overend | | Fettler/Foundry |
| J.Y. Overton (nee Sharpe) | | Senior Audio Typist |
| Mark Overton | | Clerk/Reprographic |
| Andrew J. Overy | | Vacation Trainee/Apprentice School |
| Colin W. Overy | | 5-year Student/Apprentice School |
| Edward C. Owen | | General Labourer/M/c Shop |
| H.W. Owen | | Field Engineer/Printing Div |
| John S. Owen | | Trainee Draughtsman |
| Kenneth E.A. Owen | | Trainee/Purchasing |
| Miss M.P. Owens | | |
| S.T. Owens | | Customer Services |
| Stewart T. Owen | | Technical Sales Rep/Printing |
| W.T Owens | | Apprentice |
| William E. "Bill" Owen | | Rough Grinder |
| William T. "Bill" Owen | | Machine Shop Oiler |
| Richard M. Oxer | | Labourer/Storeman |
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