from the 1938 Post Office Directory, this excludes the Publicans listed at named Pubs in the Directory. The Directory does not include Public House names, just an address. This is fine for double checking names and places; but lacks the modern naming convention of a Public House and its named sign.
1938 Beer Retailers index
Daniel McCarthy, 2 Devas Street E3
Henry McDermott, 96 Britannia Street, Hoxton N1
Benjamin J McDowell, 47 Wimbledon Road, Tooting SW17
Mrs Catherine McDuell, 57 Greatorex Street E1
Jn Ernest William Mace, 336 Kennington Park Road SE11
Miss Ada Lydia McEwen, 71 Berger road E9
Mrs Grace Louise McEwen, 1a Churchill Road, Homerton E9
Mrs Ellen Edith McGuinness, 355 New Kings Road SW6
Pat McGuire, 17 Kinnerton Street SW1
John MacKenney, 316 Walworth Road SE17
Harry Edwin McLagan, 20 Median Road & 204 Millfields road, Lower Clapton E5
Mrs Kate Emily McLaren, 289a Wick Road, Hackney E9
Mrs Margaret Maidstone & Rt Woodhams, 27 Arlington way EC1
Harold Mallen, South side, Royal Albert Dock E16
Edwin Stuart Mallinson, 157 Fountain Road, Tooting SW17
Maurice Mann, 35 Dartmouth Road, Forest Hill SE23
George Albert Marks, 238 East India Dock Road E14
Thomas Magee Marks, 507 Hackney road E2
William T Marks, 19 Rhodeswell Road E14
George Frederick Marriott, 68 Rushey Green, Catford SE6
Lewis William Marriott, 60 Vansittart Road, Forest Gate E7
Joseph Henry Marshall, 27 Warwick Road, Stratford E15
Louis Marshall, 2 Rectory Road, Fulham SW6
Mrs Minnie Rose Marshall, 38 Bellenden road, Peckham SE15
Miss May M Marshall, 163 Deptford High Street SE8
Alfred H Martin, 14 Blenheim crescent W11
Arthur Hy G Martin, 63 Queen street, Hammersmith W6
Harold Martin, 36 St Leonards Road E14
William Martin Martin, 82 Candy street, Bow E3
William Hy Martindale, 5 Jackson Street, Woolwich SE18
Hy F Marvell, 125 Battersea Church Road SW1
Henry Thomas William Maskell, 222 High Street, Stratford E15
Edward Alfred Mason, 89 Westbourne Park road W2
Mrs Amelia Sarah H Masters, 62 New Cross road SE14
Jas Masters, 63 Courthill road, Lewisham SE13
Albert E Mathews 170 Acre Lane Brixton SW2
Frank Hy Jas Matthews & George Nottage,3 & 5 Halloville Road, Canning Town E16
Jas W Matthews, 2 Campbell Street, Paddington W2
Walter C Matthews, 189 St Leonards road E14
Sidney G Maxim, 178 Walworth Road SE17
Frederick Jn May, 39 Ranelagh Grove, Pimlico SW1
Mrs Lilian Sarah Maynard, 27 Conway Street, Plaistow E13
William Mays, 647 Commercial road east E14
James Frederick Mead, 71 Redmans Road E1
Henry Meadows, 37 New Park Road, Brixton SW2
Walter Edward Meayers, 12 Avondale park road, Notting Hill W11
Jn Hy Meggett, Old Oak Lane, Harlesden NW10
Sidney Horace Meldon, 28 Sewell Street, Plaistow E13
Albert Rt Mellows, 25 Bow Common Lane E3
Jn Mendoza, 149 Cronin Road, Peckham SE15
Chas Frederick Mercer, 202a East India Dock Road E14
Mrs E Mercer 75 & 77 Dulwich Village SE21
Rt William Mercer, 1 Lizard street, St Lukes EC
Jas Samuel Merry, 193 Rommany road, West Norwood SE27
Frank Victor Mertens, 38 & 40 Lever Street EC1
Meuxs Brewery Co Ltd, 89 Vicarage road, Willesden NW10
Jn Hy Meyers, 107 Harrow Road W2
Clifford Jas Albert Mickleburgh, 176 Kingsland Road E2
William Midwinter, 48 Swinbrook road W10
Jn wilfred Miles, 15 Mehetabel road, Homerton E9
Ernest Millard, 199 Shoreditch High street E1
Chas J Miller, 44 Longfield Street, Wandsworth SW18
William Jas Miller, 18 Airy street, Lewisham SE13
Andrew Roland Mills, 28 Walmer road W10
Mrs Florence E Mills, 19 manor way, North Woolwich E16
Herbert Mills, 95 Lucas road, Kennington SE5
Thomas H Millward, 67 Old Bethnal Green Road E2
Walter Mison, 11 Fenwick Place, Stockwell SW9
Christopher Mitchell, 25 Burdett road E3
Frederick Mitchell, 354 High Street, Lewisham SE13
Henry J Mitchell, 31 Oayley Street, Limehouse E14
Arthur Chas Mogford, 116 Stonhouse Street, Clapham SW4
Mrs Lilian Mogford, 13 Norfolk Street, Islington N1
Jn Moles, 3 Ann street, Plaistow E13
Edwin George Monck, 84 Bendemeer Road, Putney SW15
Toni Moodi, 52 York road N1
Joseph Moore, 90 Homerton High Street E9
Leonard T Moore, 45 Camberwell gren SE5
William Bruton Moore, 116 Tredegar Road, Bow E3
Alfred Moreland, 190 Old Kent road SE1
Alfred John Morgan, 7 Lancefield Street, Queens Park W10
Edward Thomas Morgan, 175 Camberwell New Road SE5
Walter Jas Morgan, 67 Kender street, New Cross SE14
George Morrill, 395 The Highway E1
A Lionel Morris, 77 West street SE7
Mrs R Morris, 174 Daubeney Road, Lower Clapton E5
Chas H Morse, 84 Great Church lane, Hammersmith W6
Albert William Morton, 86 Junction road N19
Mrs Eliz Morton, 312 Hackney Road E2
Ambrose Austin Moss, 115 & 117 Brandon Street SE17
Ernest A Moss, 2 Haverstock hill NW3
Harry Alfred Moss, 54 Gold street E1
Walter S Moss, 27 York Road, Battersea SW11
Mrs Josephine M Mott, 25 Canonbury Lane N1
Jas R Mountjoy, 2 Polygon, Clapham SW4
Jas Allen Moyse, 254 Mile End Road E1
J Mudge & Sons, 56 Broadway market E8
Jn Munden, 125 Dowsett road, Tottenham N17
Edward Murphy, 249 Commercial way SE15
Herbert Chas Murphy, 121 Bow Common lane E3
Mrs Rachel Murphy, 112 Brook hill road, Woolwich SE18
James Murray, 144 & 146 Grundy street, Poplar E14
Joseph Murray, 340 Kennington lane SE11
Williamm B Murton, 17a Adair Road, North Kensington W10
Chas Myers, 61 Old Ford road E2
Michael Myers, 22 Kings road, Tottenham N17