| NAME ▲ | ▼ | VESSEL ▲ | ▼ | RIG | YEAR ▲ | ▼ | AGE | MORE |
|
| John Sylvour | Sarah | Ship | 1855 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Sarah | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Greenhand | | | |
|
| John Sylvin | L. C. Richmond | Ship | 1848 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | L. C. Richmond | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Boatsteerer | | | |
|
| John Sylvia | L. C. Richmond | Ship | 1851 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | L. C. Richmond | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | 3rd Mate | | | |
|
| John Sylvia | Janus II | Bark | 1875 | 24 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Janus II | Bark | 24 | 5' 8" | Dark | | | Hair | Eye | Residence | Rank | Remarks | | B | | Brava, Cape Verde | | | | |
|
| John Sylvia | Java | Bark | 1872 | 19 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Java | Bark | 19 | 5' 7" | Dark | | | Hair | Eye | Residence | Rank | Remarks | | B | | Azores | | | | |
|
| John Sylvia | James Maury | Bark | 1868 | 23 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | James Maury | Bark | 23 | 5' 5" | Light | | | Hair | Eye | Residence | Rank | Remarks | | Black | | Dartmouth | | | | |
|
| John Sylvia | John Carver | Bark | 1866 | 19 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | John Carver | Bark | 19 | 5' 3 1/2" | Light | | | Hair | Eye | Residence | Rank | Remarks | | B | | Azores | | | | |
|
| John Sylvia | Joseph Maxwell | Ship | 1852 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Joseph Maxwell | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Greenhand | | | |
|
| John Sylvia | Isabella | Bark | 1863 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Isabella | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | | | | |
|
| John Sylvia | Hunter | Ship | 1863 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Hunter | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | | | | |
|
| John Sylvia | Hunter | Ship | 1865 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Hunter | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | Azores | | | | |
|
| John Sylvia | Hopeton | Brig | 1860 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Hopeton | Brig | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | | | | |
|
| John Sylvia | Hesper | Ship | 1859 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Hesper | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | | | | |
|
| John Sylvia | Sarah | Ship | 1851 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Sarah | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Seaman | | | |
|
| John Sylvia | Sarah | Ship | 1851 | 28 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Sarah | Ship | 28 | | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Black | | Fayal | | | | |
|
