| NAME ▲ | ▼ | VESSEL ▲ | ▼ | RIG | YEAR ▲ | ▼ | AGE | MORE |
|
| William Leonard | Adeline | Ship | 1850 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Adeline | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Boatsteerer | | | |
|
| William Leon | Louisa | Bark | 1878 | 23 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Louisa | Bark | 23 | 5' 6" | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Dark | | Saint Helena | | | | |
|
| William Leo | Mars | Bark | 1874 | 21 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Mars | Bark | 21 | 5' 9" | Black | | | Hair | Eye | Residence | Rank | Remarks | | Black | | Saint Helena | | | | |
|
| William Leo | Mount Wollaston | Bark | 1872 | 21 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Mount Wollaston | Bark | 21 | 5' 5" | B | | | Hair | Eye | Residence | Rank | Remarks | | Wooly | | Saint Helena | | | | |
|
| William Lenne | Era | Schooner | 1865 | 42 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Era | Schooner | 42 | 5' 8" | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Brown | | New London | | | | |
|
| William Lemon | Eben Dodge | Bark | 1858 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Eben Dodge | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Ordinary | | | |
|
| William Leinerk | Martha | Bark | 1872 | 27 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Martha | Bark | 27 | 5' 6" | Light | | | Hair | Eye | Residence | Rank | Remarks | | Light | | Germany | | | | |
|
| William Leich | Martha | Bark | 1854 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Martha | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Greenhand | | | |
|
| William Leich | Montgomery | Bark | 1858 | 22 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Montgomery | Bark | 22 | | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Dark | | Montgomery Co | | | | |
|
| William Lehman | Scotland | Ship | 1854 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Scotland | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Boatsteerer | | | |
|
| William Lehay | J. D. Thompson | Bark | 1855 | 21 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | J. D. Thompson | Bark | 21 | | Light | | | Hair | Eye | Residence | Rank | Remarks | | Light | | Pittsfield, Ma | | | | |
|
| William Legroe | Emerald | Bark | 1836 | 23 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Emerald | Bark | 23 | 5' 5" | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Dark | | Lyme | | | | |
|
| William Leghorn | Friends | Ship | 1839 | 51 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Friends | Ship | 51 | 5' 4" | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Brown | | New London | | | | |
|
| William Leeles | John Coggeshall | Ship | 1847 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | John Coggeshall | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Cooper's Mate | | | |
|
| William Lee | John Howland | Bark | 1864 | 22 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | John Howland | Bark | 22 | 5' 7" | Light | | | Hair | Eye | Residence | Rank | Remarks | | Brown | | Albany, Ny | Seaman | | | |
|