| Ship, nation, owners | Voyage identification number | 5015 |
| Voyage in 1999 CD-ROM | Yes | |
| Vessel name | Dois Irmãos | |
| Flag | Portugal | |
| Flag IMP | Portugal / Brazil | |
| Place constructed | ||
| Year constructed | ||
| Place registered | ||
| Year registered | ||
| Rig | Bergantim | |
| Tonnage | 200 | |
| Standardized tonnage IMP | 200 | |
| Guns mounted | ||
| Vessel owners | Santos, Gil Tomás dos Castro, Antônio José de |
|
| Voyage Outcome | Particular outcome of voyage | Sold slaves in Americas - subsequent fate unknown |
| Outcome of voyage for slaves IMP | Slaves disembarked in Americas | |
| Outcome of voyage if ship captured IMP | Not captured | |
| Outcome of voyage for owner IMP | Delivered slaves for original owners | |
| African resistance | ||
| Voyage Itinerary | Place where voyage began IMP | Lisbon |
| First place of slave purchase | Lourenço Marques | |
| Second place of slave purchase | ||
| Third place of slave purchase | ||
| Principal place of slave purchase IMP | Lourenço Marques | |
| Places of call before Atlantic crossing | ||
| First place of slave landing | Rio de Janeiro | |
| Second place of slave landing | ||
| Third place of slave landing | ||
| Principal place of slave landing IMP | Rio de Janeiro | |
| Place where voyage ended | ||
| Region where voyage began IMP | Portugal | |
| First region of slave purchase | East Africa and Indian Ocean islands | |
| Second region of slave purchase | ||
| Third region of slave purchase | ||
| Principal region of slave purchase IMP | East Africa and Indian Ocean islands | |
| First region of slave landing | Southeast Brazil | |
| Second region of slave landing | ||
| Third region of slave landing | ||
| Principal region of slave landing IMP | Southeast Brazil | |
| Region where voyage ended | ||
| Voyage Dates | Year arrived with slaves IMP | 1829 |
| Date voyage began | 1828-03-17 | |
| Date trade began in Africa | ||
| Date vessel departed Africa | ||
| Date vessel arrived with slaves | 1829-02-22 | |
| Date vessel departed for homeport | ||
| Date voyage completed | ||
| Voyage length, homeport to slaves landing (days) IMP | 342 | |
| Middle passage (days) IMP | 43 | |
| Captain and Crew | Captain's name | Santos, Gil Tomás dos |
| Crew at voyage outset | 40 | |
| 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 | 475 | |
| Total slaves embarked IMP | 475 | |
| Number of slaves arriving at first place of landing | 437 | |
| 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 | 437 | |
| Slave (characteristics) | Percentage men IMP | |
| Percentage women IMP | ||
| Percentage boys IMP | ||
| Percentage girls IMP | ||
| Percentage male IMP | ||
| Percentage children IMP | ||
| Sterling cash price in Jamaica IMP | ||
| Slave deaths during middle passage IMP | 38 | |
| Mortality rate IMP | 8.0% | |
| Source | Sources | ANTT,JC,Mç62,Cx204: Instituto dos Arquivos Nacionais/Torre do Tombo (Lisbon, Portugal) Junta do Comércio
AHMOP,SGC4,Lv2: Arquivo Histórico do Ministério das Obras Públicas (Lisbon, Portugal) Klein,Rio de Janeiro dataset 2: University of Wisconsin Library (Madison, Wisconsin, USA) Klein, Rio de Janeiro data-set, 1825-1830 Florentino: Florentino, Manolo (Universidade Federal do Rio de Janeiro), Database of slave vessels arriving in Rio de Janeiro, 1811-1830. |