| NAME ▲ | ▼ | VESSEL ▲ | ▼ | RIG | YEAR ▲ | ▼ | AGE | MORE |
|
| Oakes A. Tobey | Annawan II | Brig | 1852 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Annawan II | Brig | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Boatsteerer | | | |
|
| Oakes A. Tobey | Annawan II | Brig | 1852 | 22 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Annawan II | Brig | 22 | | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Black | | Mashpee | | | | |
|
| Oahu Foy | Euphrates | Ship | 1842 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Euphrates | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Seaman | ON AT OAHU SANDWICH ISLAND 11/04/1844 | | |
|
| O.w. Stoweck | Ann Alexander | Ship | 1841 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Ann Alexander | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Steward | ON AT SANDWICH ISLANDS 10/22/1844 | | |
|
| O.R. Mumford | Hector | Ship | 1829 | 15 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Hector | Ship | 15 | 5' 4 3/4" | Light | | | Hair | Eye | Residence | Rank | Remarks | | Brown | | Newport | | | | |
|
| O.h. Houston | Charles and Edward | Bark | 1856 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Charles and Edward | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | 3rd Mate | | | |
|
| O.f. Thacher | Mary Ann | Ship | 1850 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Mary Ann | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Greenhand | | | |
|
| O.e. Lee | Petrel | Schr | 1871 | 19 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Petrel | Schr | 19 | 5' 4" | Light | | | Hair | Eye | Residence | Rank | Remarks | | Auburn | | New Bedford | | | | |
|
| O. W. Stacy | Belvedere | Steam bark | 1880 | 21 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Belvedere | Steam bark | 21 | 6' 1" | Light | | | Hair | Eye | Residence | Rank | Remarks | | Brown | | Bath, Me | | | | |
|
| O. W. Gates | Candace | Bark | 1851 | 17 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Candace | Bark | 17 | 5' 7" | Light | | | Hair | Eye | Residence | Rank | Remarks | | Brown | | New London | | | | |
|
| O. S. Whitehead | Bingham | Ship | 1832 | 25 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Bingham | Ship | 25 | 5' 4" | | | | Hair | Eye | Residence | Rank | Remarks | | | | | | | | |
|
| O. S. Treet | Tuscaloosa | Bark | 1844 | 21 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Tuscaloosa | Bark | 21 | 5' 6" | Light | | | Hair | Eye | Residence | Rank | Remarks | | Brown | | East Hartford, CT | | | | |
|
| O. S. Smith | George Howland | Ship | 1842 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | George Howland | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Seaman | ON AT PAITA PERU 08/26/1845 | | |
|
| O. S. Rouncevall | Washington Freeman | Bark | 1867 | 24 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Washington Freeman | Bark | 24 | 5' 9" | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Brown | | Windham | | | | |
|
| O. S. Hule | Tekoa | Schr | 1863 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Tekoa | Schr | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | | | | |
|
