By ship name
| Ship | Year | Origin | Destination |
| LADY HOBART | 1851 | Dublin | New York |
| LADY MILTON | 1851 | Dublin | New York |
| LADY MILTON | 1851 | Dublin | New York |
| LADY OF THE LAKE | 1831 | Londonderry | Wilmington |
| LADY OF THE LAKE | 1833 | Londonderry | Wilmington |
| LADY RUSSELL | 1857 | Tralee | New York |
| LADY WASHINGTON | 1803 | Belfast | Charleston |
| LANCASHIRE | 1847 | Liverpool | New York |
| LEADER | 1827 | Ireland | Maine |
| LEANDER | 1831 | Londonderry | Wilmington |
| LIVE OAK | 1804 | Londonderry | New York |
| LIVE OAK | 1894 | Londonderry | New York |
| LOCKWOOD | 1851 | Cork | New York |
| LOUISA | 1825 | Belfast | New York |
| LOUISA KILHAM | 1858 | Cork | New York |
| LOUISIANA | 1868 | Queenstown | New York |
| LOUSIANA | 1868 | Queenstown | New York |
| LUCANIA | 1898 | Queenstown | New York |
| LUCANIA | 1906 | Queenstown | New York |
| LYDIA | 1826 | Cork | New Haven |