1950 - 1959
1950
- Berry, Robert Emmanuel
- Bignami, Enrico Giuseppe Nils Jon Langenheim
- Birchall, Robert Inman
- Carling, John Russell
- Cotterell, Michael Henry
- Crowther, John Michael
- Duckworth, William
- El Tigani, Mohammed El Tom
- Grant, Alexander Michael
- Hall, Donald James
- Jenkins, Philip
- Melissas, Constantinos Menelaou
- Ross, Kenneth Clempson
- Shephard, Anthony John
- Singh, Sharanbir
- Stevenson, Roger Francis
- Will, Ian
1951
- Bullock, Alan
- Fletcher, Albert Paul
- Liddington, John
- Litherland, Kenneth Leslie
- MacCallum, Michael Marwick
- Talpur, Ali Murad
- Usher, George
- Webber, Christopher John
- Whitfeld, Paul Raymond
- Wright, Franklin John Marie Clement
- Yuviengjaya, Chalvem
1952
- Gaunt, Richard Haselden
- King, Maurice Charles Francis
- Lloyd Williams, Walter Kaye
- Newman, Peter John
- Putnam, David Keith
- Sellen, Donald Charles
- Shukry, Asaad Haidar
- Taylor, Reginald John
- Watkins, John Morgan
1953
- Chatham, Peter Gordon
- Harrison, John Rumsey
- Hosking, David Christopher
- Lowe, Dee Donald
- Martin, George Iain Mackay
- Matthews, Keith Morton Lille
- Qutabuddin, Ghulam
- Roberts, Donald
- Smith, Alan Neville Cooling
- Tinnin, David Bruce
- Tso, Alexander Dajuin
1954
- Andrews, William John
- Bawden, Michael George
- Bhandari, Rajendra Kumar
- Edgoose, Stanton John
- Geddes, John Dalziel
- Hsu, Robert Wen
- Kendell, Anthony Martin
- Law, John Thomas
- Mackay, Donald Ross
- Maguire, Michael Finnbarr
- Mclaren, John Alistair Brodie
- Osborne, Graham Oliver
- Parkinson, Michael Cathcart
- Sindhvananda, Kosol
- Tomlinson, Colin
1955
- Correa-Mendes, Vasco Guedes
- El Amin, Abdel Mageed Mohmed El Hag
- Fleetwood, Colin Stuart
- Henderson, Robin James
- Hull, Robert Edward
- King, Euclid Sylvestre
- Law, James Palmer
- Lawton, Joseph
- Rashid, Haroun Ar
- Stevenson, John Brian
1956
- Bowditch, Robert Patrick
- Jones, Gareth Wynne
- Martin, Charles
- McCann, John William
- Saunders, Ernest Walter
- York, John Timothy Langham
1957
- Andrew, William Edward
- Chamberlain, Peter John
- Chapman, Kenneth Primrose
- James, John Keith
- Jones, Timothy Lawson
- Mackay, Kenneth Malcolm
- Murray, David Ridley Victor
- Porter, Kenneth
- Rabbani, Abul Kalam Mohammed Ghulam
- Shams, Faiz Ahmad
- Teh, Ee Kheng
- Vukovich, Steven
- Walker, Robert
1958
- Creese, Michael John
- Harris, Peter
- Lawrence, Daniel David
- Poorooshasb, Hormozd Bahman
- Smith, Peter Ernest
- Souza-Machado, Vincent Ignatius Loyola
- St John Mildmay, Michael Hugh Paulet
- Virmani, Ashok
- Wilson, Rodney Crispian Gordon
1959
- Hoyle, Richard Martin
- Inkster, Ian James
- Lally, John Scott
- McMaster, Christopher Nicholson
- Moore, Anthony John Harvey
- Ramsay, James William
- Svejdar, Jaroslav Frank
- Willmott, Michael John
- York, Richard Anthony