| NAME ▲ | ▼ | VESSEL ▲ | ▼ | RIG | YEAR ▲ | ▼ | AGE | MORE |
|
| Isaac Howland | Good Return II | Ship | 1834 | 30 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Good Return II | Ship | 30 | 5' 8 1/2" | dark | | | Hair | Eye | Residence | Rank | Remarks | | dark | | Dartmouth | | | | |
|
| Isaac Howland | Mercury | Bark | 1825 | 21 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Mercury | Bark | 21 | 5' 8 1/2" | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Brown | | Dartmouth | | | | |
|
| Isaac Howland | Mercury | Bark | 1828 | 24 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Mercury | Bark | 24 | 5' 8 1/2" | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Brown | | Dartmouth | | | | |
|
| Isaac Howland | Liverpool | Bark | 1831 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Liverpool | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | Dartmouth | | | | |
|
| Isaac Hubbard | Friends | Ship | 1834 | 28 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Friends | Ship | 28 | 5' 8" | Black | | | Hair | Eye | Residence | Rank | Remarks | | Black | | New York | | | | |
|
| Isaac Hull | Clematis | Ship | 1839 | 18 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Clematis | Ship | 18 | 5' 6" | Light | | | Hair | Eye | Residence | Rank | Remarks | | Dark Brown | | New York | | | | |
|
| Isaac Hull | Exchange | Bark | 1849 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Exchange | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Greenhand | | | |
|
| Isaac Hunter | Flora | Ship | 1837 | 23 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Flora | Ship | 23 | 5' 8" | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Dark | | New York | | | | |
|
| Isaac Hunter | Good Return II | Ship | 1833 | 24 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Good Return II | Ship | 24 | 5' 6 1/2" | coloured | | | Hair | Eye | Residence | Rank | Remarks | | black wooly | | New Bedford | | | | |
|
| Isaac Hunter | George and Martha | Ship | 1822 | 23 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | George and Martha | Ship | 23 | 5' 6 1/2" | Colored | | | Hair | Eye | Residence | Rank | Remarks | | black wooly | | New Bedford | | | | |
|
| Isaac Hurst | Herald | Ship | 1841 | 23 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Herald | Ship | 23 | 5' 7" | Light | | | Hair | Eye | Residence | Rank | Remarks | | Light | | New York | | | | |
|
| Isaac Hustin | Franklin | Ship | 1846 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Franklin | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | 2nd Mate | | | |
|
| Isaac Irish | Herald | Ship | 1825 | 43 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Herald | Ship | 43 | | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Dark | | Portsmouth, Ri | | | | |
|
| Isaac Irish | Mentor | Ship | 1832 | 43 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Mentor | Ship | 43 | 5' 10" | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Dark | | New Port | | | | |
|
| Isaac J. Bloom | George Washington | Ship | 1845 | 28 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | George Washington | Ship | 28 | 5' 5" | Light | | | Hair | Eye | Residence | Rank | Remarks | | Brown | | New York | | | | |
|
