| NAME ▲ | ▼ | VESSEL ▲ | ▼ | RIG | YEAR ▲ | ▼ | AGE | MORE |
|
| Isacher H. Akin | A. R. Tucker | Bark | 1864 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | A. R. Tucker | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Master | | | |
|
| Isacher, Jr Tree | Euphrates | Ship | 1851 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Euphrates | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | | | | |
|
| Isack Brown | Exchange | Bark | 1850 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Exchange | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Seaman | | | |
|
| Isack Capron | Hecla | Bark | 1849 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Hecla | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Carpenter | | | |
|
| Isack Jmfe(?) | Admiral Blake | Schr | 1878 | 18 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Admiral Blake | Schr | 18 | 5' 8" | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Brown | | Mahe | | | | |
|
| Isack Smith | Minerva II | Ship | 1845 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Minerva II | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Ordinary | | | |
|
| Isack Vanholden | Logan | Ship | 1844 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Logan | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Seaman | ON AT LAHAINA SANDWICH ISLAND 10/22/1846 | | |
|
| Isadora Manuel | America | Bark | 1859 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | America | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | | | | |
|
| Isadore Ersero | Europa | Bark | 1876 | 20 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Europa | Bark | 20 | 5' 4" | Dark | | | Hair | Eye | Residence | Rank | Remarks | | B | | Guam | | | | |
|
| Isadore Govres | Edward | Bark | 1849 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Edward | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Seaman | | | |
|
| Isafredo Galliefe | John | Ship | 1852 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | John | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | 2nd Mate | | | |
|
| Isaiae Levett | Abraham Barker | Ship | 1848 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Abraham Barker | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Seaman | | | |
|
| Isaiah 2d Chace | James Maury | Ship | 1851 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | James Maury | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Greenhand | | | |
|
| Isaiah A. Butler | Falcon | Ship | 1834 | 19 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Falcon | Ship | 19 | 5' 7" | Light | | | Hair | Eye | Residence | Rank | Remarks | | Light | | Norridgemark | | | | |
|
| Isaiah A. Butler | Chili | Schooner | 1833 | 18 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Chili | Schooner | 18 | 5' 2" | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Brown | | Tisbury | | returned | | |
|