| NAME ▲ | ▼ | VESSEL ▲ | ▼ | RIG | YEAR ▲ | ▼ | AGE | MORE |
|
| Thomas Oelinger | Cornelius Howland | Ship | 1867 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Cornelius Howland | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | New Bedford | | | | |
|
| Thomas Oconner | Alexander | NA | 1821 | 20 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Alexander | NA | 20 | | Fair | | | Hair | Eye | Residence | Rank | Remarks | | Red | | New Bedford | | | | |
|
| Thomas Obrien | Champion | Bark | 1853 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Champion | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Ordinary | | | |
|
| Thomas Obrien | Chili | Ship | 1848 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Chili | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Greenhand | DESERTED AT NEW BEDFORD 08/30/1848 | | |
|
| Thomas Obrien | Robert Morrison | Bark | 1851 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Robert Morrison | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Greenhand | | | |
|
| Thomas Oakman | Mount Vernon | Ship | 1840 | 21 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Mount Vernon | Ship | 21 | | | | | Hair | Eye | Residence | Rank | Remarks | | | | Lunenburg | | Returned in Brandt | | |
|
| Thomas Oakman | Montezuma | Schr | 1840 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Montezuma | Schr | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Greenhand | | | |
|
| Thomas Oahu | Messenger | Ship | 1843 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Messenger | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Seaman | | | |
|
| Thomas Oahu | Gay Head II | Bark | 1888 | 40 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Gay Head II | Bark | 40 | 5' 3" | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Black | | New Bedford | | | | |
|
| Thomas O. Wilcox | Coral | Bark | 1863 | 33 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Coral | Bark | 33 | 5' 9 1/2" | Light | | | Hair | Eye | Residence | Rank | Remarks | | Light | | Westerly, Ri | | | | |
|
| Thomas O. Paine | George | Ship | 1839 | 20 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | George | Ship | 20 | 5' 7" | Light | | | Hair | Eye | Residence | Rank | Remarks | | Light | | Calais | | | | |
|
| Thomas O. Neil | Daniel Webster | Ship | 1865 | 23 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Daniel Webster | Ship | 23 | 5' 10" | Fair | | | Hair | Eye | Residence | Rank | Remarks | | Light | | Saxonville, Ma | | | | |
|
| Thomas O. Neil | Arnolda | Bark | 1867 | 26 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Arnolda | Bark | 26 | 5' 10" | Light | | | Hair | Eye | Residence | Rank | Remarks | | Brown | | Ireland | | | | |
|
| Thomas O. Neal | Lancaster | Ship | 1848 | 23 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Lancaster | Ship | 23 | | Light | | | Hair | Eye | Residence | Rank | Remarks | | Brown | | Albany, NY | | | | |
|
| Thomas O. Mealy | McLellan | Ship | 1846 | 24 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | McLellan | Ship | 24 | 6' 0" | Light | | | Hair | Eye | Residence | Rank | Remarks | | Red | | New York | | | | |
|