| Buenos Aires | ||
| Revd William Brown [WB] | Pastor to the Monte Grande Colony | 1826-1829 |
| Scots Minister in Buenos Aires | 1829-1849 | |
| Revd August Ludwig Siegel [ALS] | German Pastor in Buenos Aires responsible for officiating at baptisms and marriages, 1850-1851 |
1843-1854 |
| Revd James Smith [JS] | Teacher in Buenos Aires | 1849-1851 |
| Minister of St Andrew’s Scots Church, Buenos Aires | 1851-1883 | |
| Continuing ministry in Argentina | 1883-1900 | |
| Revd James W. Fleming [JWF] | Assistant Minister, St Andrew’s Scots Church, Buenos Aires | 1879-1883 |
| Minister of St Andrew’s Scots Church, Buenos Aires | 1883-1925 | |
| Revd Charles Robertson, MA BD [CR] | Assistant Minister, St Andrew’s Scots Church, Buenos Aires | 1884-1885 |
| Revd Alexander MacDonald | Assistant Minister, St Andrew’s Scots Church, Buenos Aires | 1889 |
| Revd William Williams [WW] | Schoolmaster and Pastor, Barracas, Buenos Aires | 1886-c.1889 |
| Revd W. B. Strong [WBS] | Interim Minister, St Andrew’s Scots Church, Buenos Aires | 1889 |
| Revd D. J. Moir Porteous [DJMP] | Assistant Minister, St Andrew’s Scots Church, Buenos Aires | 1890-1892 |
| Revd W. Lyall Wilson [WLW] | Assistant Minister, St Andrew’s Scots Church, Buenos Aires | 1892-1894 |
| Interim Minister | 1899-1900 | |
| Revd T. Edward Taylor, M.A. [TET] | Assistant Minister, St Andrew’s Scots Church, Buenos Aires | 1894-1895 |
| Revd A. R. Howell, M.A. [ARH] | Assistant Minister, St Andrew’s Scots Church, Buenos Aires | 1895-1897 |
| Revd J. H. Horton McNeill [JHHM] | Assistant Minister, St Andrew’s Scots Church, Buenos Aires | 1897-1900 |
| Revd C. Gordon MacKenzie [CGM] | Assistant Minister, St Andrew’s Scots Church, Buenos Aires | 1900-1902 |
| Revd J. Mitford Mitchell [JMM] | officiating | Oct/Dec 1900 |
| In the Argentine Provinces | ||
| Revd Francis Gebbie [FG] | Minister at St John’s Church, Florencio Varela and Jeppener | 1857-1883 |
| Revd Martin P. Ferguson [MPF] | Minister at Chascomús, Province of Buenos Aires | 1863-1903 |
| Revd Lachlan McNeill [LM] | Minister in Entre Rios and neighbouring parts of Uruguay | 1866-1883 |
| Minister at St John’s Church, Florencio Varela and Jeppener | 1883-1910 | |
| Clergy of other churches and laity who occasionally officiated | ||
| Revd John Armstrong [JA] | English Chaplain at St John’s Church, Buenos Aires | 1825-1839 |
| Revd Thomas Schongraf [TS] | Montevideo [?] | 1854 |
| Revd William Goodfellow [GF] | Minister of the American Methodist Church, Buenos Aires | 1857-1869 |
| Revd William Gordon [WG] | [unknown] | 1859-1860 |
| Revd Robert Turnbull [RT] | [unknown] | 1862 |
| Revd Thomas Prosser Powell [TPP] | Assistant Chaplain of St John’s Church, Buenos Aires | 1865-1868 |
| Revd Abraham Matthews [AM] | Congregational Minister in the Welsh Colony, Chubut Valley | 1865-1899 |
| Revd Theophilus Fredric Schmid [TFS] | Anglican Chaplain at Fray Bentos, Salto and Concordia | 1867-1874 |
| Revd John Shiells [JSh] | Anglican Chaplain at Paysandú and Fray Bentos | 1868-1873 |
| Revd M(?) Jackson[M?J] | [unknown] | 1875 |
| Revd William Henry Shimield [WHS] | Anglican Chaplain at Salto | 1874-1882 |
| Revd John F. Thomson [JFT] | Minister of the American Methodist Church, Buenos Aires—“El Apostol del Plata” | March 1882 |