| NAME ▲ | ▼ | VESSEL ▲ | ▼ | RIG | YEAR ▲ | ▼ | AGE | MORE |
|
| Dennis C. Leary | Congress II | Ship | 1855 | 25 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Congress II | Ship | 25 | | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Dark | | Bridgeport, Ct | | | | |
|
| Dennis C. Newell | Leander | Bark | 1841 | 19 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Leander | Bark | 19 | 5' 5" | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Dark | | Massachusetts | | | | |
|
| Dennis Caroll | Abraham Barker | Ship | 1850 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Abraham Barker | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Greenhand | | | |
|
| Dennis Casta | Courser | Bark | 1871 | 30 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Courser | Bark | 30 | 6' 2" | Black | | | Hair | Eye | Residence | Rank | Remarks | | Black | | Sao Taigo, Cape Verde | | | | |
|
| Dennis Clark | Minerva Smyth | Ship | 1840 | 25 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Minerva Smyth | Ship | 25 | | | | | Hair | Eye | Residence | Rank | Remarks | | | | Augusta, ME | | Returned | | |
|
| Dennis Collins | Olive Branch | Ship | 1845 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Olive Branch | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Boatsteerer | | | |
|
| Dennis Collins | Octavia | Bark | 1843 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Octavia | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Greenhand | | | |
|
| Dennis Connor | Mary Ann | Ship | 1850 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Mary Ann | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Sail Maker | AND GREENHAND | | |
|
| Dennis Conolly | Eleanor B. Conwell | Schr | 1906 | 22 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Eleanor B. Conwell | Schr | 22 | 5' 9" | Light | | | Hair | Eye | Residence | Rank | Remarks | | Brown | | East Cambridge | | | | |
|
| Dennis Conway | Rajah | Bark | 1847 | 19 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Rajah | Bark | 19 | | Light | | | Hair | Eye | Residence | Rank | Remarks | | Black | | Bangor, Me | | | | |
|
| Dennis Cook | Rajah | Bark | 1844 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Rajah | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Boatsteerer | | | |
|
| Dennis Cook | President II | Bark | 1851 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | President II | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Master | | | |
|
| Dennis Cook | President II | Bark | 1851 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | President II | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Master | | | |
|
| Dennis Cook | Champion | Bark | 1841 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Champion | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Oarsman | | | |
|
| Dennis Cook | Champion | Bark | 1842 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Champion | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Boatsteerer | | | |
|
