L
	Large S A	Steve	LS(S)	Swiftsure, Valiant, Olympus
	Lee A. J.	‘Tanzy’	CRS	Amphion, Subtle, Telemachus, Explorer, Anchorite, Odin, Ambush, Oberon
	Leither K. D.	Ken Junior	LMEM(M)	Porpoise, Onyx, Onslaught, Osiris, Ocelot
	Leither K. E.	Ken Senior	Ch. OEL	Onyx, Porpoise
	Lewis R. G.	‘Charlie’	CMEM	Andrew, Thermopylae, Onslaught, Oberon, Cachalot, Rorqual, Otus
	Lidiard J	John	POME	Scorcher, Sea Devil, Tabard, Tireless, Aurochs, Sealion, Andrew
	Lindley C	Charlie	RMech	Onslaught
	M
	Marles P.	Phil	ME1	Narwhal, Astute, Resolution, Conqueror,
	Marlow J. R.	‘Bugs’	CPO U(W)	Talent, Aeneas, Ambush, Rorqual, Finwhale, Valiant
	Marshal G.	Geoff	CPO Coxn	Anchorite, Tireless, Trump, Thorough, Aurochs, Telemachus, Tudor, Alliance, Tiptoe, Dreadnought
	Mawby A J	Adi	CPO(C)	Oracle, Onyx, Sealion, Orpheus, Olympus, Odin, Osiris
	McGarry D	David	CPO(MA)	Valiant, Splendid, Sovereign, Tireless, Talent
	McGrath P.	Pat	CMEM(M)	Osiris (several times)
	Middleton D. G. J.	‘Baz’	Mech1	Artful, Acheron, Rorqual, Grampus, Opossum
	Milligan RB	Ron ('Spike')	LME	Token(66-67) Alcide(67-69) Sealion(70-71)
	Mold A.	Alan	MEA1	Orpheus, Otter
	Moss D J	Dave	LMEM	Otus, Oberon
	Mountford A	Tony	CPO Stwd.	Revenge, Repulse, Otter, Sealion, valiant, Turbulent