| NAME ▲ | ▼ | VESSEL ▲ | ▼ | RIG | YEAR ▲ | ▼ | AGE | MORE |
|
| Jacob Macomb | Leonidas | Ship | 1842 | 21 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Leonidas | Ship | 21 | 6' 1" | Black | | | Hair | Eye | Residence | Rank | Remarks | | Wooly | | Hartford | | | | |
|
| Jacob Madad? | Chelsea | Ship | 1834 | 20 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Chelsea | Ship | 20 | 5' 5" | Yellow | | | Hair | Eye | Residence | Rank | Remarks | | Black | | Philadelphia | | | | |
|
| Jacob Maguire | Friends | Ship | 1839 | 24 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Friends | Ship | 24 | 5' 2" | Light | | | Hair | Eye | Residence | Rank | Remarks | | Dark | | New London | | | | |
|
| Jacob Malls | Jones | Ship | 1835 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Jones | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | | | | |
|
| Jacob Malter | Congress | Ship | 1864 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Congress | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | | | | |
|
| Jacob Mangis | Robert Morrison | Bark | 1857 | 22 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Robert Morrison | Bark | 22 | | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Dark | | New York | | | | |
|
| Jacob Marshall | Columbus | Bark | 1855 | 20 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Columbus | Bark | 20 | | Light | | | Hair | Eye | Residence | Rank | Remarks | | Dark | | Albany, Ny | | | | |
|
| Jacob Marshall | Columbus | Bark | 1855 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Columbus | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Greenhand | | | |
|
| Jacob Martins | Logan | Ship | 1854 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Logan | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Greenhand | | | |
|
| Jacob Matthews | Maria | Bark | 1852 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Maria | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Boatsteerer | | | |
|
| Jacob Mattson | A. R. Tucker | Bark | 1857 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | A. R. Tucker | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Ordinary | | | |
|
| Jacob Mattson | A. R. Tucker | Bark | 1857 | 21 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | A. R. Tucker | Bark | 21 | | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Brown | | Chester Co., Pa | | | | |
|
| Jacob Max | Abraham Barker | Ship | 1853 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Abraham Barker | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Greenhand | | | |
|
| Jacob McBride | Wolga | Bark | 1846 | 30 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Wolga | Bark | 30 | | Light | | | Hair | Eye | Residence | Rank | Remarks | | Yellow | | Goshen | | | | |
|
| Jacob Mcchesney | Congress | Ship | 1843 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Congress | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Ordinary | DID NOT SHIP | | |
|
