| Ship, nation, owners | Voyage identification number | 2586 |
| Voyage in 1999 CD-ROM | Yes | |
| Vessel name | Dois Irmãos | |
| Flag | Portugal | |
| Flag IMP | Portugal / Brazil | |
| Place constructed | USA, location unspecified | |
| Year constructed | ||
| Place registered | ||
| Year registered | ||
| Rig | Schooner | |
| Tonnage | 64 | |
| Standardized tonnage IMP | 64 | |
| Guns mounted | ||
| Vessel owners | ||
| Voyage Outcome | Particular outcome of voyage | Court of Mixed Commission, Sierra Leone, condemned |
| Outcome of voyage for slaves IMP | Slaves disembarked in Old World | |
| Outcome of voyage if ship captured IMP | British | |
| Outcome of voyage for owner IMP | Original goal thwarted (human agency) | |
| African resistance | ||
| Voyage Itinerary | Place where voyage began IMP | Havana |
| First place of slave purchase | Bonny | |
| Second place of slave purchase | ||
| Third place of slave purchase | ||
| Principal place of slave purchase IMP | Bonny | |
| Places of call before Atlantic crossing | ||
| First place of slave landing | Freetown | |
| Second place of slave landing | ||
| Third place of slave landing | ||
| Principal place of slave landing IMP | Freetown | |
| Place where voyage ended | ||
| Region where voyage began IMP | Cuba | |
| First region of slave purchase | Bight of Biafra and Gulf of Guinea islands | |
| Second region of slave purchase | ||
| Third region of slave purchase | ||
| Principal region of slave purchase IMP | Bight of Biafra and Gulf of Guinea islands | |
| First region of slave landing | Sierra Leone | |
| Second region of slave landing | ||
| Third region of slave landing | ||
| Principal region of slave landing IMP | Sierra Leone | |
| Region where voyage ended | ||
| Voyage Dates | Year arrived with slaves IMP | 1838 |
| Date voyage began | 1837-12-23 | |
| Date trade began in Africa | ||
| Date vessel departed Africa | 1838-04-01 | |
| Date vessel arrived with slaves | 1838-05-11 | |
| Date vessel departed for homeport | ||
| Date voyage completed | ||
| Voyage length, homeport to slaves landing (days) IMP | 139 | |
| Middle passage (days) IMP | 40 | |
| Captain and Crew | Captain's name | Rosecuta, José |
| Crew at voyage outset | ||
| Crew at first landing of slaves | ||
| Crew deaths during voyage | ||
| Slave (numbers) | Number of slaves intended at first place of purchase | |
| Slaves carried from first port of purchase | ||
| Slaves carried from second port of purchase | ||
| Slaves carried from third port of purchase | ||
| Total slaves embarked | 306 | |
| Total slaves embarked IMP | 306 | |
| Number of slaves arriving at first place of landing | 245 | |
| Number of slaves disembarked at first place of landing | ||
| Number of slaves disembarked at second place of landing | ||
| Number of slaves disembarked at third place of landing | ||
| Total slaves disembarked IMP | 245 | |
| Slave (characteristics) | Percentage men IMP | 56.4% |
| Percentage women IMP | 12.4% | |
| Percentage boys IMP | 12.9% | |
| Percentage girls IMP | 18.3% | |
| Percentage male IMP | 69.3% | |
| Percentage children IMP | 31.1% | |
| Sterling cash price in Jamaica IMP | ||
| Slave deaths during middle passage IMP | 66 | |
| Mortality rate IMP | 22.0% | |
| Source | Sources | IUP,ST,18/B/65: Great Britain, Irish University Press Series of British Parliamentary Papers: Slave Trade, vols. 1-90 (Shannon, 1969-74).
IUP,ST,16/A/68-71: Great Britain, Irish University Press Series of British Parliamentary Papers: Slave Trade, vols. 1-90 (Shannon, 1969-74). Meyer-Heiselberg,46: Meyer-Heiselberg, R., Notes from the Liberated African Department in the Archives at Fourah Bay College, Freetown, Sierra Leone (Uppsala, 1967) PP,1839,XLVIII,70: Great Britain, Parliamentary Papers: 1777, Accounts and Papers, No 9 1788, XXII 1789, XXIV, XXV, XXVI 1790, XXIX, XXX, XXXI 1790-91, XXXIV 1792, XXXV 1795-96, XLII 1798-99, XLVIII 1799 XLVIII 1801-2, IV 1803-4, X 1806, XII 1813-14, XII 1816, VII 1823, XIX 1825, XXVII, XXIX 1826, XXIX 1826-7, XXII, XXVI 1828, XXVI 1829, XXVI 1830, X 1831, XIX 1831-32, XLVII 1842, XLIV 1845,XLIX 1847-8, XXII 1852-3, XXXIX |