GERMAN FORCES

Pazerschiffe Admiral Graf Spee    Capt. Hans Langsdorff
    Damaged by two 8in and eighteen 6in shells; approximately 36 killed, 60 wounded

BRITISH FORCES

Force H, South American Division
    Commodore Henry Harwood (promoted Rear Admiral effective 13th December on 14th December)

CA HMS Exeter          Captain F. S. Bell
    Damaged by seven 11.1in hits; approximately 61 killed, 23 wounded

CL HMS Ajax (F)        Captain C.H.L. Woodhouse
    Damaged by one 11.1in hit and near misses; 7 killed, 5 wounded

CL HMNZS Achilles    Captain W.E. Parry
    Damaged by splinters; 4 killed

In addition

HMS Cumberland
    At the Falkland Islands; ordered to sail from Port Stanley 0946 13th December, not expected off the Plate until the evening of 14th December

HMS Dorsetshire
    Ordered to the Plate from Cape Town on 13th December

HMS Shropshire
    To follow on 15th December

HMS Ark Royal
CB Renown
CL Neptune
    At Rio de Janiero on 17th December; to be off the Plate on 19th December, 1200 hrs
 
 

Hunting Groups, as formed 5th October 1939

Force F (North Atlantic & West Indies)
Berwick & York never operated together, but separately escorted convoys
Force G (southeast coast of South America)
Cumberland & Exeter; Ajax & HMNZS Achilles added later
Force H (Cape of Good Hope)
Sussex & Shropshire
Force I (Ceylon)
Eagle, Cornwall, Dorsetshire
Force J (North Atlantic)
Glorious, Malaya
Force K (Permambuco-Freetown)
Ark Royal, Renown, Neptune, Hardy, Hero, Hereward, Hostile, Clyde
Force L (North Atlantic)
Repulse, Furious
Force X (Pernambuco-Dakar)
Dupleix, Foch
Force Y (West Indies)
Strasbourg, Hermes, Neptune (to Force K)

Additional escorts for Atlantic Convoys:
Warspite, Revenge, Resolution, Emerald, Enterprise

Sources:
Chronology of the War at Sea 1939-1945 by J. Rohwer and G. Hummelchen
Colonel and the Falklands by G. Bennett.
The War at Sea, Volume 1 by S.W.Roskill.
British Cruisers in Action by P.C. Smith and J.R. Dominy.
The Gathering Storm by W.S. Churchill.