| NAME ▲ | ▼ | VESSEL ▲ | ▼ | RIG | YEAR ▲ | ▼ | AGE | MORE |
|
| Leonard Mazzeen | Connecticut | Ship | 1827 | 22 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Connecticut | Ship | 22 | 5' 7" | Indian | | | Hair | Eye | Residence | Rank | Remarks | | Black | | Montville | | | | |
|
| Leonard Mansey | Chandler Price | Ship | 1848 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Chandler Price | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Greenhand | | | |
|
| Leonard Mam | Friendship | Bark | 1831 | 30 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Friendship | Bark | 30 | 5' 7" | Light | | | Hair | Eye | Residence | Rank | Remarks | | [---] | | Boston | | | | |
|
| Leonard Macomber | America | Bark | 1848 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | America | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Boatsteerer | | | |
|
| Leonard M. Stevens | Kathleen | Bark | 1857 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Kathleen | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Greenhand | | | |
|
| Leonard M. Stephens | Kathleen | Bark | 1857 | 22 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Kathleen | Bark | 22 | | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Dark | | Claremont | | | | |
|
| Leonard M. Mosher | Herald II | Ship | 1865 | 18 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Herald II | Ship | 18 | 5' 6" | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Dark | | Dartmouth | | discharged at St. Catharine's, came home | | |
|
| Leonard M. Arthur | Hercules | Bark | 1853 | 20 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Hercules | Bark | 20 | | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Dark | | Chatham, NY | Seaman | | | |
|
| Leonard Luscomb | Kingston | Ship | 1848 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Kingston | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Master | | | |
|
| Leonard Luscomb | Timoleon | Ship | 1845 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Timoleon | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Master | | | |
|
| Leonard Luscomb | Garland | Bark | 1842 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Garland | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | 1st Mate | | | |
|
| Leonard Lefevre | Stafford | Bark | 1886 | 24 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Stafford | Bark | 24 | 5' 10 1/2" | Light | | | Hair | Eye | Residence | Rank | Remarks | | Light | | Brooklyn | | | | |
|
| Leonard Lattimer | Superior | Ship | 1833 | 30 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Superior | Ship | 30 | 5' 9" | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Dark | | Wethersfield | | | | |
|
| Leonard Lattimar | Superior | Ship | 1833 | 30 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Superior | Ship | 30 | 5' 9" | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Dark | | Wethersfield | | | | |
|
| Leonard Latimer | Columbus | Brig | 1844 | 40 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Columbus | Brig | 40 | 5' 10" | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Black | | New London | | | | |
|
