| Surname and name |
Occupation |
Address |
Additional Notes |
| Macbey John & Thomas |
|
Ensenada |
|
| Mackay John |
estanciero |
Quilmes |
|
| Mackay John |
|
Navarro |
|
| Mackay Thomas |
estanciero |
Quilmes |
|
| Macken Edward |
|
San Andrés de Giles |
|
| Macnamara John |
|
Cañuelas |
|
| Maguire James |
|
Mercedes |
|
| Maguire John |
estanciero |
Fortín de Areco |
|
| Maguire John |
|
Navarro |
|
| Maguire Michael |
|
Pilar |
|
| Maguire Patrick |
|
Pilar |
|
| Maguire Patrick |
|
Luján |
|
| Maguire Thomas |
|
Capilla del Señor |
|
| Maguire Thomas |
|
Navarro |
|
| Maguire Thomas |
|
Luján |
|
| Maguire Thomas |
|
Mercedes |
|
| Mahan Francis |
ship chandler |
Paseo Julio 40 |
|
| Mahon John |
|
Guardia del Monte |
|
| Mahon John |
|
Ensenada, Almacén Tablas |
|
| Mahon Joseph |
|
Ensenada |
|
| Mahon Michael |
|
Capilla del Señor |
|
| Mahon Thomas |
|
Samborombón |
|
| Maillie C. |
|
Strangers' Club, San Martín 44 |
|
| Malcolm Frances |
grocery |
Paraguay 344 |
|
| Malcom John |
livery stables |
Rivadavia 19 |
of Malcom & Allinson |
| Malcom John senr. |
farmer |
Magdalena |
|
| Mallet J. |
|
San Martín 88 |
|
| Mallet J. |
|
Barracas, Barraca del Sol |
|
| Mallman F. |
importer |
Piedad 108 |
|
| Maloney James |
|
Mercedes |
|
| Mantels & Pfeiffer |
importers |
Florida 48 & 112 |
data uncertain |
| Manuel John |
|
Navarro |
|
| Marcos M. |
tailor |
Piedad 68 |
|
| Marshall J. |
|
Perú 19 |
|
| Marshall John |
boiler maker |
Barracas |
of Marshall & Harkness |
| Martin Edward |
|
Luján |
|
| Martin Patrick |
|
Arrecifes |
|
| Martin Peter |
|
Guardia del Monte |
|
| Martindale John & William |
cabinet makers |
Esmeralda 98 |
|
| Martins N. |
headmaster, national school |
San Fernando |
|
| Masefield R. |
|
Strangers' Club, San Martín 44 |
|
| Mason Samuel |
|
Mercedes |
|
| Mattos A. |
|
Potosí 219 |
|
| Matzembechen J. C. |
|
Cuyo 100 |
|
| Mauá Bank |
|
Cangallo 101 |
|
| Maxwell Daniel |
Commercial Rooms |
calle 25 de Mayo |
|
| Maxwell Joseph |
|
San Andrés de Giles |
|
| Maxwell Patrick |
|
Chascomús |
|
| Maza M. |
|
Potosí 81 |
|
| McCann James |
wool broker |
Potosí 328 |
|
| McCargo John |
estanciero |
Quilmes |
wife Jane Robson |
| McCarthy Hugh |
|
Capilla del Señor |
|
| McCloud J. |
bone mill |
Barracas |
|
| McClymont John |
estanciero |
Cañuelas |
(1798-1865) married Catherine White |
| McClymont Robert |
|
Cañuelas |
(1801-97) married Emily Cannon |
| McClymont Robert |
|
Victoria 313 |
|
| McClymont William |
estanciero |
Guardia del Monte |
(1834-83) married Lucinda Miller |
| McCormack John |
|
Pilar |
|
| McCormack Michael |
|
Mercedes |
|
| McCormack Thomas & Patrick |
|
Ranchos |
|
| McCormack Thomas |
|
Pergamino |
|
| McCormack Thomas |
|
San Pedro |
|
| McCormick Patrick |
|
Mercedes |
|
| McCrevy James |
|
Ensenada |
|