| NAME ▲ | ▼ | VESSEL ▲ | ▼ | RIG | YEAR ▲ | ▼ | AGE | MORE |
|
| Isaac Robert | Julius Caesar | Ship | 1838 | 24 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Julius Caesar | Ship | 24 | 5' 8" | Light | | | Hair | Eye | Residence | Rank | Remarks | | Light | | Pennsylvania | | | | |
|
| Isaac Robinson | Harvest | Bark | 1843 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Harvest | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Seaman | | | |
|
| Isaac Robinson | Gazelle | Ship | 1857 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Gazelle | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Steward | | | |
|
| Isaac Robinson | Gazelle | Ship | 1857 | 24 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Gazelle | Ship | 24 | | Malatto | | | Hair | Eye | Residence | Rank | Remarks | | White | | Philadelphia | | | | |
|
| Isaac Robinson | Maria Theresa | Ship | 1854 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Maria Theresa | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Steward | | | |
|
| Isaac Roderigues | Alto | Bark | 1864 | 33 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Alto | Bark | 33 | 5' 6" | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Black | | Scotland | | | | |
|
| Isaac Rogers | George and Mary | Ship | 1845 | 21 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | George and Mary | Ship | 21 | 5' 8" | Light | | | Hair | Eye | Residence | Rank | Remarks | | Dark | | Waterford | | | | |
|
| Isaac Rogers | Leonidas | Ship | 1854 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Leonidas | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Greenhand | | | |
|
| Isaac Ross | Pembroke | Ship | 1840 | 28 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Pembroke | Ship | 28 | 5' 11" | Mulatto | | | Hair | Eye | Residence | Rank | Remarks | | Dark | | Stonington, CT | | | | |
|
| Isaac Russell | Scotland | Ship | 1857 | 21 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Scotland | Ship | 21 | | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Dark | | Andover | | | | |
|
| Isaac Ryder | St. Peter | Bark | 1852 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | St. Peter | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Seaman | | | |
|
| Isaac S Davis | Sunbeam | Bark | 1860 | 21 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Sunbeam | Bark | 21 | | Light | | | Hair | Eye | Residence | Rank | Remarks | | Brown | | East Washington, Nh | | | | |
|
| Isaac S Heal | Martha II | Bark | 1862 | 20 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Martha II | Bark | 20 | | Light | | | Hair | Eye | Residence | Rank | Remarks | | Brown | | Belfast, Me | | | | |
|
| Isaac S Hines | Seine | Bark | 1862 | 28 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Seine | Bark | 28 | | Light | | | Hair | Eye | Residence | Rank | Remarks | | Brown | | Waterbury, Ct | | | | |
|
| Isaac S Young | Matilda Sears | Bark | 1860 | 23 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Matilda Sears | Bark | 23 | | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Dark | | Chelsea | | | | |
|
