| NAME ▲ | ▼ | VESSEL ▲ | ▼ | RIG | YEAR ▲ | ▼ | AGE | MORE |
|
| Isaac S. Allen | Amethyst | Ship | 1850 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Amethyst | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Seaman | | | |
|
| Isaac S. Allen | Columbus | Bark | 1847 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Columbus | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Greenhand | | | |
|
| Isaac S. Chadwick | Florida | Ship | 1841 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Florida | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | 2nd Mate | | | |
|
| Isaac S. Chadwick | Mayflower | Ship | 1844 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Mayflower | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | 1st Mate | | | |
|
| Isaac S. Chadwick | Thomas Dickason | Ship | 1865 | 44 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Thomas Dickason | Ship | 44 | 5' 2 1/2" | Light | | | Hair | Eye | Residence | Rank | Remarks | | Brown | | Dartmouth | | | | |
|
| Isaac S. Chambers | Arnolda | Ship | 1855 | 35 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Arnolda | Ship | 35 | | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Dark | | Kingston, Ri | | | | |
|
| Isaac S. Clark | Callao | Ship | 1855 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Callao | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Greenhand | | | |
|
| Isaac S. Davis | Columbus | Ship | 1841 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Columbus | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Greenhand | | | |
|
| Isaac S. Dey | Abbie Bradford | Schr | 1882 | 18 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Abbie Bradford | Schr | 18 | 5' 9" | Light | | | Hair | Eye | Residence | Rank | Remarks | | Light | | New Jersey | Seaman | | | |
|
| Isaac S. Ewen | Julius Caesar | Ship | 1843 | 22 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Julius Caesar | Ship | 22 | 5' 3" | Light | | | Hair | Eye | Residence | Rank | Remarks | | Brown | | New London | | | | |
|
| Isaac S. Hart | Balaena | Ship | 1825 | 20 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Balaena | Ship | 20 | | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Brown | | Dartmouth | | DESERTED AT SANDWICH ISLAND 10/1826 | | |
|
| Isaac S. Hart | Majestic | Ship | 1848 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Majestic | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Greenhand | | | |
|
| Isaac S. Howland | John Adams | Bark | 1831 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | John Adams | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | | | | |
|
| Isaac S. Laurence | Acushnet | NA | 1845 | 19 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Acushnet | NA | 19 | | Fair | | | Hair | Eye | Residence | Rank | Remarks | | Brown | | Falmouth | | | | |
|
| Isaac S. Lawrence | Acushnet | NA | 1845 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Acushnet | NA | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Boatsteerer | | | |
|
