| 1841 Oles Fødselsdag - Fødselsdags Sangen |
| 1842 On A Wagon |
| 1843 On Green Dolphin Street |
| 1844 On Mother Kellys Door Step |
| 1845 On My Honor |
| 1846 On My Journey Home |
| 1847 On The Hills Of Manchuria |
| 1848 On The Jericho Road |
| 1849 On The Loose |
| 1850 On The Run |
| 1851 On This Day O Beautiful Mother |
| 1852 On Top Of Old Smokey |
| 1853 One Bread One Body |
| 1854 One Day |
| 1855 One Little Candle |
| 1856 One Love |
| 1857 One More River To Cross |
| 1858 Only A Shadow |
| 1859 Only In God |
| 1860 Only Our Rivers Run Free |