| NAME ▲ | ▼ | VESSEL ▲ | ▼ | RIG | YEAR ▲ | ▼ | AGE | MORE |
|
| William Cosgrove | Marengo | Ship | 1866 | 21 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Marengo | Ship | 21 | 5' 4" | Dark | | | Hair | Eye | Residence | Rank | Remarks | | B | | Genoa, Italy | | | | |
|
| William Cosgrove | Congress II | Ship | 1858 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Congress II | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Greenhand | | | |
|
| William Cosgrove | Congress II | Ship | 1858 | 24 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Congress II | Ship | 24 | | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Dark | | North Adams | | | | |
|
| William Cosgrove | Congress II | Bark | 1863 | 29 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Congress II | Bark | 29 | 5' 5 3/4" | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Dark | | North Adams | | | | |
|
| William Cosbn | Hibernia | Ship | 1846 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Hibernia | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Steward | | | |
|
| William Corson | Falcon | Bark | 1887 | 26 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Falcon | Bark | 26 | 5' 7" | Light | | | Hair | Eye | Residence | Rank | Remarks | | Brown | | Chicago | | | | |
|
| William Corry | Hadley | Bark | 1877 | 20 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Hadley | Bark | 20 | 5' 6" | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Dark | | Cape Verde | | | | |
|
| William Corrant | Samuel Robertson | Ship | 1846 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Samuel Robertson | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Seaman | | | |
|
| William Cornwell | Chili | Ship | 1843 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Chili | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Blacksmith | | | |
|
| William Cornwell | Isabella | Ship | 1845 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Isabella | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Boatsteerer | | | |
|
| William Corner | Sarah | Ship | 1851 | 21 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Sarah | Ship | 21 | | Light | | | Hair | Eye | Residence | Rank | Remarks | | Brown | | Boston | | | | |
|
| William Cornell? | Ceres | Bark | 1844 | 36 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Ceres | Bark | 36 | 5' 7" | Light | | | Hair | Eye | Residence | Rank | Remarks | | light | | New London | | | | |
|
| William Cornell | Margaret Scott | Ship | 1847 | 15 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Margaret Scott | Ship | 15 | | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Black | | Fall River | | | | |
|
| William Cornell | Menkar | Ship | 1851 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Menkar | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Boy | | | |
|
| William Cornell | Moctezuma | Ship | 1857 | 24 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Moctezuma | Ship | 24 | | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Dark | | Lowell | | | | |
|
