| NAME ▲ | ▼ | VESSEL ▲ | ▼ | RIG | YEAR ▲ | ▼ | AGE | MORE |
|
| Jack Kanaka | Eben Dodge | Bark | 1856 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Eben Dodge | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Ordinary | | | |
|
| Jack Kanaker | Connecticut | Ship | 1837 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Connecticut | Ship | | 5' 7" | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Black | | New London | | | | |
|
| Jack Kealea | Niger | Ship | 1870 | 25 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Niger | Ship | 25 | 5' 8" | Black | | | Hair | Eye | Residence | Rank | Remarks | | Black | | New Caledonia | | | | |
|
| Jack L. Morgan | Arthur V. S. Woodruff | Schr | 1912 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Arthur V. S. Woodruff | Schr | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | Vermont | | | | |
|
| Jack Larch | Cohannet | Schr | 1872 | 22 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Cohannet | Schr | 22 | 5' 3" | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Dark | | New Bedford | | | | |
|
| Jack Lawrence | Augusta | Ship | 1834 | 17 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Augusta | Ship | 17 | | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Black | | Hawaii | | | | |
|
| Jack Leonard | Mogul | Ship | 1847 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Mogul | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | New London | | also listed 'Jacob Leonaw' | | |
|
| Jack Leonardo | Electra | Ship | 1845 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Electra | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | | | | |
|
| Jack Leonardo | Indian Chief | Ship | 1851 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Indian Chief | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | | | | |
|
| Jack Lewis | Chelsea | Ship | 1831 | 34 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Chelsea | Ship | 34 | 5' 8" | Yellow | | | Hair | Eye | Residence | Rank | Remarks | | Black | | New London | | | | |
|
| Jack Little | Lapwing | Ship | 1856 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Lapwing | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Greenhand | | | |
|
| Jack Little | Lapwing | Ship | 1856 | 21 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Lapwing | Ship | 21 | | Light | | | Hair | Eye | Residence | Rank | Remarks | | Brown | | East Mendon, Ny | | | | |
|
| Jack Lombo | Seine | Bark | 1880 | 21 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Seine | Bark | 21 | 5' 8" | Black | | | Hair | Eye | Residence | Rank | Remarks | | Black | | Annabon | | | | |
|
| Jack Lonba | Daisy | Brig | 1905 | 25 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Daisy | Brig | 25 | 5' 9" | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Dark | | New Bedford | | | | |
|
| Jack Long | Augusta | Ship | 1842 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Augusta | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | | | | |
|
