| NAME ▲ | ▼ | VESSEL ▲ | ▼ | RIG | YEAR ▲ | ▼ | AGE | MORE |
|
| John W. Mcdonald | Barclay | Ship | 1852 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Barclay | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Boatsteerer | | | |
|
| John W. Mason | Henry Taber | Bark | 1855 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Henry Taber | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Greenhand | | | |
|
| John W. Mason | Henry Taber | Bark | 1855 | 20 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Henry Taber | Bark | 20 | | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Brown | | Boston | | | | |
|
| John W. Marble | Pilgrim | bark | 1842 | 16 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Pilgrim | bark | 16 | 5' 4 1/2" | light | | | Hair | Eye | Residence | Rank | Remarks | | dark | | Somerset, MA | green hand | | | |
|
| John W. Manley | Commodore Decatur | Ship | 1904 | 18 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Commodore Decatur | Ship | 18 | 5' 6 1/2" | light | | | Hair | Eye | Residence | Rank | Remarks | | brown | | New York | | | | |
|
| John W. Mahoney | Herald II | Ship | 1851 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Herald II | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | Ireland | | | | |
|
| John W. Mahoney | Gratitude | Bark | 1858 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Gratitude | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Boatsteerer | | | |
|
| John W. Mack Or Meach | James | Schr | 1863 | 16 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | James | Schr | 16 | 5' 7 1/2" | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Dark | | Lakeville | Seaman | | | |
|
| John W. Mack | Emma C. Jones | Ship | 1871 | 21 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Emma C. Jones | Ship | 21 | 5' 6" | Light | | | Hair | Eye | Residence | Rank | Remarks | | Dark | | New York | | | | |
|
| John W. Lovejoy | Orray Taft | Bark | 1852 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Orray Taft | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Greenhand | | | |
|
| John W. Loomis | Venice | Bark | 1851 | 16 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Venice | Bark | 16 | 5' 6" | Light | | | Hair | Eye | Residence | Rank | Remarks | | Brown | | Norwich | | | | |
|
| John W. Livermore | Palladium | Ship | 1845 | 22 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Palladium | Ship | 22 | 5' 9" | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Dark | | New London | | | | |
|
| John W. Livermore | Jefferson | Ship | 1847 | 24 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Jefferson | Ship | 24 | 5' 9" | Fair | | | Hair | Eye | Residence | Rank | Remarks | | dark brown | | New London | | | | |
|
| John W. Linover | Palladium | Ship | 1832 | 19 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Palladium | Ship | 19 | 5' 7" | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Light | | New London | | | | |
|
| John W. Lewis | Oliver Crocker | Ship | 1850 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Oliver Crocker | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | 2nd Mate | | | |
|