| NAME ▲ | ▼ | VESSEL ▲ | ▼ | RIG | YEAR ▲ | ▼ | AGE | MORE |
|
| John Ocorrs? | Rebecca Groves | Brig | 1839 | 17 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Rebecca Groves | Brig | 17 | 5' 2" | Light | | | Hair | Eye | Residence | Rank | Remarks | | Light | | New York | | | | |
|
| John Oconner | Marengo | Ship | 1851 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Marengo | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Greenhand | | | |
|
| John Obrine | Richmond | Ship | 1821 | 25 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Richmond | Ship | 25 | | Dark | | | Hair | Eye | Residence | Rank | Remarks | | | | Waterford | | | | |
|
| John OBrine | Minerva | Bark | 1818 | 24 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Minerva | Bark | 24 | 5' 8 1/2" | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Black | | New Bedford | | | | |
|
| John Obrien | Anadir | Bark | 1851 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Anadir | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Boy | | | |
|
| John Obrien | George and Susan | Ship | 1857 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | George and Susan | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Mariner | | | |
|
| John Ober | Elizabeth Swift | Bark | 1854 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Elizabeth Swift | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Greenhand | | | |
|
| John Obarry Adams | Emma C. Jones | Ship | 1852 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Emma C. Jones | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | 4th Mate | | | |
|
| John Oats | Cavalier | Bark | 1855 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Cavalier | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | | | | |
|
| John Oats | Thomas Nye | Ship | 1854 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Thomas Nye | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Greenhand | | | |
|
| John Oates | Cavalier | Bark | 1855 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Cavalier | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Ordinary | | | |
|
| John Oakley | E. B. Phillips | Bark | 1881 | 28 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | E. B. Phillips | Bark | 28 | 5' 5" | Light | | | Hair | Eye | Residence | Rank | Remarks | | Light | | Philadelphia | | | | |
|
| John Oak | Mary | Ship | 1844 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Mary | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Steward | | | |
|
| John Oak | Minerva | Bark | 1847 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Minerva | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Cook | | | |
|
| John Oahu | Leonidas | Ship | 1849 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Leonidas | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Ordinary | | | |
|