| NAME ▲ | ▼ | VESSEL ▲ | ▼ | RIG | YEAR ▲ | ▼ | AGE | MORE |
|
| Leonard Comstock | Friends | Ship | 1827 | 17 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Friends | Ship | 17 | 5' 8" | Light | | | Hair | Eye | Residence | Rank | Remarks | | Light | | Montville | | | | |
|
| Leonard Chippendale | George and Susan | Bark | 1881 | 26 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | George and Susan | Bark | 26 | 5' 7" | Dark | | | Hair | Eye | Residence | Rank | Remarks | | B | | New Bedford | | | | |
|
| Leonard Chippendale | Alice Knowles | Bark | 1883 | 27 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Alice Knowles | Bark | 27 | 5' 8" | Dark | | | Hair | Eye | Residence | Rank | Remarks | | B | | Saint Helena | Boatsteerer | | | |
|
| Leonard Chippendale | Mermaid | Bark | 1885 | 30 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Mermaid | Bark | 30 | 5' 7" | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Black | | Saint Helena | | | | |
|
| Leonard Chippendal | Jireh Perry | Bark | 1875 | 21 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Jireh Perry | Bark | 21 | 5' 6" | Dark | | | Hair | Eye | Residence | Rank | Remarks | | B | | Saint Helena | | | | |
|
| Leonard Chapels | Indian Chief | Ship | 1838 | 28 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Indian Chief | Ship | 28 | 5' 10" | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Brown | | New London | | | | |
|
| Leonard Cammond | George | Ship | 1846 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | George | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | First Officer | | | |
|
| Leonard C. Wing | Sharon | Ship | 1841 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Sharon | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Boatsteerer | | | |
|
| Leonard C. Dexter | LaGrange | Brig | 1841 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | LaGrange | Brig | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Master | | | |
|
| Leonard C. Beckwith | Alert | Ship | 1847 | 20 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Alert | Ship | 20 | 5' 8" | Light | | | Hair | Eye | Residence | Rank | Remarks | | Brown | | New London | | | | |
|
| Leonard C. Bates | Garland | Ship | 1846 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Garland | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Ordinary | | | |
|
| Leonard C. Bailey | Fabius | Ship | 1849 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Fabius | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Greenhand | | | |
|
| Leonard Burgess | America | Brig | 1842 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | America | Brig | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Boy | | | |
|
| Leonard Brooks | Franklin | Schr | 1885 | 22 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Franklin | Schr | 22 | 5' 5" | Light | | | Hair | Eye | Residence | Rank | Remarks | | Brown | | Barbados | | | | |
|
| Leonard Brimmer | George Howland | Ship | 1857 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | George Howland | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | 2nd Mate | discharged | | |
|