| NAME ▲ | ▼ | VESSEL ▲ | ▼ | RIG | YEAR ▲ | ▼ | AGE | MORE |
|
| Leonard Barnum | Illinois | Ship | 1850 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Illinois | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | 2nd Mate | | | |
|
| Leonard Barnum | Roscoe II | Bark | 1844 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Roscoe II | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | 3rd Mate | | | |
|
| Leonard Baker | Parachute | Ship | 1845 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Parachute | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Greenhand | | | |
|
| Leonard Bacon | Champion | Bark | 1849 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Champion | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Greenhand | | | |
|
| Leonard Bacon | Champion | Bark | 1849 | 19 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Champion | Bark | 19 | | Light | | | Hair | Eye | Residence | Rank | Remarks | | Brown | | Orange | | | | |
|
| Leonard B. Haskins | Fenelon | Ship | 1844 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Fenelon | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Greenhand | | | |
|
| Leonard B. Brownson | Java | Ship | 1841 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Java | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | 2nd Mate | | | |
|
| Leonard B. Bartholomew | Margaret Scott | Ship | 1851 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Margaret Scott | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Greenhand | | | |
|
| Leonard B Brownson | Barnstable | Bark | 1860 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Barnstable | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Master | | | |
|
| Leonard B Brownson | Baltic | Bark | 1855 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Baltic | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Master | | | |
|
| Leonard Arms | Candace | Ship | 1838 | 19 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Candace | Ship | 19 | 5' 5" | Light | | | Hair | Eye | Residence | Rank | Remarks | | Dark | | Macon, GA | | | | |
|
| Leonard Apes | Benjamin Morgan | Ship | 1846 | 31 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Benjamin Morgan | Ship | 31 | 5' 8" | Light | | | Hair | Eye | Residence | Rank | Remarks | | Brown | | New London | | | | |
|
| Leonard Apes | Benjamin Morgan | Ship | 1848 | 23 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Benjamin Morgan | Ship | 23 | 5' 8" | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Dark | | New London | | | | |
|
| Leonard Apes | Armata | Ship | 1840 | 16 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Armata | Ship | 16 | 5' 0" | Fair | | | Hair | Eye | Residence | Rank | Remarks | | Light Brown | | Groton | | | | |
|
| Leonard Apes | Armata | Ship | 1842 | 17 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Armata | Ship | 17 | 5' 5" | Fair | | | Hair | Eye | Residence | Rank | Remarks | | Light | | New London | | | | |
|