Marks
Rev. Edward, 18 Charlemont place (D.D.)
Isaac, 167 New St (felt hatter)
James, 70 Charlemont St (house painter)
Mrs., 2 Burlington place (occup not listed)
Mrs., 70 Charlemont St (straw bonnet maker)
William Cox, 6 Upper Camden St (occup not listed)
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Marlow
Edward and Arthur, 11 Merchant's quay (lithographers, engravers and general printers, tickets and cards neatly engraved and executed)
James, 32 Mary's abbey (rope manufacturer)
Robert, 16 Little Denmark St (boot and shoe maker)
John, 25 Synnott place (solicitor)
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Marlyn
From the Law Directory (not listed at stated address)
Geoffrey, 162 Capel St (solicitor)
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Marmion
and Fottrell, 7 Fleet St (solicitors)
John, 66 Lower Leeson St (barrister - Michaelmas term 1833)-spelt Mannin in street listing and Law Directory
Madame, 173 Great Brunswick St (professor of music)
Mathew, 138 James' St (grocer)
William, 24 Aughrim St (occup not listed)
From the Law Directory (not listed at stated address)
and Meyler, 7 Fleet St (solicitors)
F., 7 Fleet St (Sessional Crown solicitor, County Louth)
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Marney
Richard, 9 Barrack St (hair dresser)
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Marony
Davis, 5 Harcourt Road (occup not listed)-listed as David in street listing
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Marquis
George, 5 James' St East (occup not listed)
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Marr
Gallie and Co., 13 Lower Liffey St (letter founders) 
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Marron
John, 34 Smithfield (factor)-spelt Morrow in general listing
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Marsh
Charles, 30 Lower Sackville St (jeweller)
Sir Henry, M.D., 9 Merrion Sq North (physician)
Sir Henry, M.D., Central Board of Health, 13 Ely place (physician in ordinary to the Queen)
Joseph, 30 Lower Sackville St (Esq.)
Miss, 5 Lower Mecklenburgh St (lodging house)
Walter, 18 Portland Row (Esq.)
From the Law Directory (not listed at stated address)
George W., 11 South Frederick St (barrister - Hilary term 1839)
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Marshall
Frederick, 82 Ranelagh Road (Esq.)
Michael, 51 Lower Gloucester St North (occup not listed)
Mrs., 2 Stamer St (occup not listed)
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Martelli
W.G., 6 Bayview, North Strand (Esq.)
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Martin
206 Great Britain St (saddler)-no initial or first name
and Co., 1 Swift's row (agency office)
and Co., 23 Grafton St (general agency and registry office)
and Cartan, 45 Lower Gardiner St (solicitors)
and Dillon, 15 Capel St (haberdashers)
and Dooley, 10 Little Ship St (wire workers)
and Jones, 86 Grafton St (apothecaries)
and King, 1 Hardwicke St (solicitors)
Alexander, 12 Upper Leeson St (doctor)
Dominick, 86 Grafton St (apothecary)
Edward, 40 Temple bar (bootmaker)
Edward, 13 Merchant's quay (ribbon warehouse)
Edward, 21 Beresford St (dairy)
G., 29 Park St East (hunting mews)-listed as F. in street listing
Henry, 74 Sir John Rogerson's quay (tide surveyor)
James, 2 Swift's alley (nailor)
James, 5 White's lane South (bookseller)
James, 29 Dame St (occup not listed)-spelt Marton in general listing
James, 13 Little Britain St (tobacconist)
John, 45 Lower Gardiner St (solicitor)
John, 1 Upper Mount St (barrister)
John, 30 Queen Sq North (builder)
John, 23 Peter St (veterinary surgeon)
John, 12 New Church St (salesmaster)
John, 24 South Great George's St (Italian warehouseman)
John, 8-9 Watling St (tanner)
John, 11 North Frederick St (solicitor)
John, 26 City quay (coal office)
John and Son, 10 North Wall (timber merchants)
Mary, 4 East Essex St (grocer)
Mr., 61 Summerhill (occup not listed)
Patrick, 61 Mary St (clothier)
Peter, 28 Great Britain St (saddler and harness maker)
Peter and Son, 45 Queen Sq East (builders)
Simon, 4 Lower Dorset St (grocer)
Thomas, 2 Lower Baggot St (corn chandler)
Thomas, 33 Lower Pembroke st (forage stores)
Thomas, 7 Northumberland Sq, Lower Abbey St (occup not listed)
William, 21 South William St (poulterer)
William, 26 Merchant's quay (occup not listed)
William, 8 Chancery place (bookseller)
William, 11 Lower Kevin St (dairy)
From the Law Directory (not listed at stated address)
John, 1 Hardwicke St (solicitor)
John, 1 Upper Mount St (solicitor)
John, 88 Capel St (solicitor)
M., 77 Lower Gardiner St (solicitor)
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Martley
Henry, 15 Harcourt St (barrister - Easter term 1838)-spelt Matley in street listing
James Frederick, 86 Harcourt St (barrister - Hilary term 1847)-not listed at address
Mrs., 86 Harcourt St (occup not listed)
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Marton
James, 29 Dame St (occup not listed)-spelt Martin in street listing
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Martyn
and Thunder, 141 Old Church St (licensed brewers)
Mrs., 128 Lower Baggot St (occup not listed)
From the Law Directory (not listed at stated address)
M.J., no address (barrister - Trinity term 1843)
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Marum
From the Law Directory (not listed at stated address)
M., Aharney House (barrister - Michaelmas term 1846)
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Maryon
Henry, 43 Golden lane (pawnbroker)-spelt Manson in general listing
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Maskerry
Joseph, 3 Andrew St (Esq.)
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Mason
Edward Groves, 20 Lower Mecklenburgh St (occup not listed)
George, 24 D'Olier St (bookseller)
Henry, 4 Hoey's Court (timber yard)
James, 95 Lower Coombe (grocer)
John, 20 Bishop St (shoe maker)
John, 1 Kane's court West (lime yard)
Rev. John H., 4 Clanbrassil place (T.C.)
Joseph Henry Monk, Queen's Inns Chambers, 10 Henrietta St (barrister - Trinity term 1800 - librarian to the Queen's Inns Society)
M., 2 Parliament St (confectioner)
R., 31 Henry St (jeweller)
Seacombe, 11 Essex bridge and 1 Kensington place, Castlewood Avenue, Rathmines (optician)
Standish, 42 Arran quay and 27 Lower Sackville St (hosier)
Thomas, 49 Stafford St (cabinet maker)
Thomas Peter, M.D., 6 York St (F.R.S.C.I. surgeon)
William Shaw, 62 Lower Camden St (Esq.)
From the Law Directory (not listed at stated address)
John, 10 Upper Rutland St (solicitor)
St. John, Killarney (barrister - Trinity term 180?-last digit unclear)
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Massy
George Rolls, 18 Kildare St (solicitor)
John Bolton, 55 Stephen's green East (barrister - Michaelmas term 1840)
From the Law Directory (not listed at stated address)
John, 5 Upper Gloucester St North (solicitor)
Henry William, no address (barrister - Trinity term 1843)
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Masters
Edward, 76 Talbot St (solicitor)-spelt Mathews in street listing
W., 76 Patrick St (victualler)
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Masterson 
Elizabeth, 84 Capel St (tobacconist)
Francis, 42 Charlemont St (spirit retailer)
George, 17 Great Brunswick St (machine and mangle factory)
John, 25 Upper Ormond Quay (clothier and tailor)
Mathew, 13 Haymarket (corn factor)
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Mathers
Charles, 9 Leinster St (street directory lists Mrs. C. Mathers, milliner)
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Mathew
Bridget, 1 New Church St (grocer)
William P., Charitable Bequests Office, 35 Lower Gardiner St (secretary)
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Mathews
Alexander, 14 Lower Temple St (bell hanger)
Bryan, 31 Mary's lane (dairy)
Edward, 76 Talbot St (solicitor)-listed as Masters in general listing
John, 18 North King St (dairy)
John M., 23 Palmerston place (solicitor)
Letitia, 87 South Great George's St (Italian warehouse)
M., 110 Old Church St (provision dealer)
Mary, 199 Great Britain St (coffee house)
Mr., 5 Prussia St (occup not listed)-listed as Mr. Mathias in street listing
Mrs. J.E., 37 Fitzwilliam place South (occup not listed)
Mrs., 1 Lennox St (occup not listed)
Patrick, 130 North King St (vintner)
Peter, 2 King's Inns St (printer)
Samuel, 12 Lower Dominick St and Janeville, 13 Peter place (solicitor)
Samuel, 68 Dame St (merchant tailor)
Mrs. Sarah, 9 Waterloo terrace, Upper Leeson St (occup not listed)
Stephen, 103 Francis St (hair cutter)
Stephen and Thomas, 24 and 25 Smithfield (salesmasters)
Sylvester, 43 Bridgefoot St (vintner)
Thomas, 88 Talbot St (occup not listed)
From the Law Directory (not listed at stated address)
and L'Estrange, 76 Talbot St (solicitors)
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Mathias
Mr., 5 Prussia St (occup not listed)-listed as Mr. Mathews in general listing
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Matley
Henry, 15 Harcourt St (barrister - Easter term 1838)-spelt Martley in general listing and Law Directory
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Matunis
Mr., 22 Lower Ormond quay (law chambers)-spelt Maturis in general listing
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Maturin
Charles, 30 Blessington St (barrister - Hilary term 1832)
From the Law Directory (not listed at stated address)
J., Upper Temple St (solicitor)
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Maturis
Mr., 22 Lower Ormond quay (law chambers)-spelt Matunis in street listing
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Maunsell
Charles, 15 St. Andrew St and 14 Lower Fitzwilliam St (solicitor)
George Woods, 10 Merrion Sq South (barrister - Hilary term 1839)
Miss, 85 Upper Leeson St (occup not listed)
Miss, 18 Bayview avenue (occup not listed)
Robert, 11 Merrion Sq South and Ballawley park, Dundrum (solicitor)
William Hare, 4 Fitzwilliam Sq East (solicitor)
From the Law Directory (not listed at stated address)
Henry, Limerick (barrister - Easter term 1813)
J., Oakley park, Celbridge (barrister - Easter term 1836)
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Maurice
Samuel, 2 William's place South (shoe maker)
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Maxwell
Henry, 2 South Great George's St (vintner)
James, 43 Lower Mountjoy St (occup not listed)
Joseph, 22 North Cumberland St (solicitor)
M. and E., 31 South Frederick St (dress makers)
Martha, 31 South Frederick St (stay maker)
Mrs., 25 Middle Gardiner St (occup not listed)
Patrick, 52 Montgomery St (vintner)
Robert, 25 Middle Gardiner St and Woodville, Artane (solicitor)
Mrs. S., 1 Springgarden St and Ballybough Road (occup not listed)
Stewart, 11 Warrington place (Esq.)
William, 25 Middle Gardiner St (Esq.)
From the Law Directory (not listed at stated address)
Albert F., 20 York St (barrister - Hilary term 1826)
Patrick, 22 North Cumberland St (solicitor)
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May
George A.C., Upper Queen's Inns Chambers, 10 Henrietta St (barrister - Hilary term 1844)
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Mayer
Augustus, 7 Hawkins' St (bookbinder)
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Mayln
Stephen, 55 Dawson St (occup not listed)
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Mayne
Catherine, 178 Great Britain St (confectioner)
Charles, 100 Middle Abbey St (solicitor)
Edward Ellis, 41 French St (Esq.)
Edward L., 55 Upper Baggot St (barrister)-see E.G. below
James A., 3 Hardwicke place (proctor - solicitor)
James Arthur, 24 Lower Gardiner St (solicitor)
John, 1-2 John's lane East (tailor)
Mrs. John, 55 Upper Baggot St (occup not listed)
Joseph St. Clair, 24 Lower Gardiner St, and Mantua, Swords (solicitor)
Pelham Joseph, 74 Talbot St (solicitor)
Robert Sedborough, 10 North Richmond place (solicitor)
Robert St. George, 9 Belvidere place (barrister - Easter term 1837)
W.A., 3 Waterloo terrace, Upper Leeson St (Esq.)
William Annesley, 3 Waterloo terrace, North Strand (barrister)
From the Law Directory (not listed at stated address)
E.G., 55 Upper Baggot St (barrister - Hilary term 1847)-see Edward L. above
Edward J., Merrion St (barrister - Hilary term 1848)
William Annesley, no address (barrister - Hilary term 1845)
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Maypowder
Richard, 9 Blackhall row (victualler)
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Mayston
George Robert Hume, 2 Springgarden parade (Esq.)
Robert, 2 Springgarden parade (Esq.)
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Maziere
Robert, 23 Eccles St (solicitor)-spelt Maguire in street listing
Marcus Samuel, 7 Gardiner's row (Esq.)
Mrs., 13 North Great George's St (occup not listed)
The Misses, 7 Gardiner's Row (occups not listed)
Robert, 1 Gardiner's place (solicitor)
William, 1 Gardiner's place (solicitor)
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Meade
Edward, 15 Patrick St (occup not listed)
Francis, 37 Eccles St (barrister)
Francis Fulton, 37 Eccles St (Esq.)
John, 27 Golden lane (provision delaer)
Josias Dunn, 8 Kildare St (solicitor)
Michael, 180 Great Brunswick St (builder)
Mrs., 150 Lower Gloucester St (occup not listed)
Patrick, 39 Manor St (occup not listed)
Richard and Son, 8 Kildare St (solicitors)
T.J., 7 Cecilia St (dentist)
William, 16 George's Hill and Water Row, 9 Ormond market (poulterer)
From the Law Directory (not listed at stated address)
F., 37 Blessington St (barrister - date of entry to bar not given)
Francis Fulton, no address (barrister - Easter term 1839)
John C., 41 York St (solicitor)
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Meadows
From the Law Directory (not listed at stated address)
Joseph, 100 Middle Abbey St (solicitor)
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Meagher
Francis, 26 Lower Gardiner St (barrister - Hilary term 1845)
Richard, 23 South Richmond St (builder)
Rev. William, 83 Marlborough St (Metropolitan R.C. chapel)
From the Law Directory (not listed at stated address)
Joseph, 125 Upper Abbey St (solicitor)
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Meally
William, 58 Lower Charlemont St (clerk)
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Mealy
Edward, 8 Tighe St (provision dealer)
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Meara
Charles J., 7 Fownes St (merchant)
Charles J., 8 Harrington St (Esq.)
Laurence, 56 Manor St (tenement building - indiv. occups. not listed)
Charles and Co., 4 Bachelor's walk (wine merchant)
James, 12 George's quay (fish merchant)
James, 13 Queen Sq West (merchant)
John, 13 George's Quay (merchant)
Timothy and Son, 15 George's Quay (not in detailed street listing)
Thomas, 29 Henry St (linen draper)
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Meares
George S., 1 Foster St, Ballybough Road (Esq.)
James, 17 Westmoreland St and 11 Cambridge terrace, Rathgar Road (solicitor)
James, 24 Lower Abbey St (provision dealer and lodging house keeper)
Joseph, 75 Dame St (boot maker)
Mrs., 8 Charlemont Mall (occup not listed)
Mrs., 35 Upper Dorset St (occup not listed)
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Mease
Robert, Montpelier parade, Monkstown and 13 Upper Ormond quay (solicitor)
From the Law Directory (not listed at stated address)
John C., 41 York St (solicitor)
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Meates
Richard, 23 South King St (hairdresser)
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