We have so far registered 92,376 seafarers
| Name | Born | Place of birth (place of living shown if missing) | | Christopher Tønnessen | 1776 | Lived in Eikvåg,Farsund | |
| Halvor Tønnessen | December 18, 1879 | Born in Flekkefjord | |
| Hans Oscar Willhelm Gottfried Tønnessen | January 15, 1875 | Born in Flekkefjord | |
| Harald Richmann Tønnessen | January 24, 1905 | Born in Brekkestø | |
| Håkon Odd Tønnessen | July 5, 1920 | Born in Hitra | |
| John Edvin Tønnessen | November 7, 1914 | Born in Farsund | |
| Josef Torup Tønnessen | November 12, 1906 | Born in Høvåg | |
| Jørgen Emanuel Tønnessen | July 4, 1916 | Born in Lists | |
| Karl Andreas Tønnessen | March 10, 1921 | | |
| Karsten Emil Tønnessen | June 8, 1921 | Born in Lista | |
| Laurits Tønnessen | September 16, 1897 | Born in Lista | |
| Odd Rune Lund Tønnessen | October 16, 1912 | Lived in Farsund | |
| Olav Thorleif Tønnessen | May 19, 1910 | Born in Kristiansand | |
| Ole Johan Tønnessen | December 19, 1907 | Born in Vestre Moland | |
| Oluf Teodor Tønnessen | December 7, 1879 | Born in Vanse | |
| Sigurd Toralf Tønnessen | August 17, 1907 | Born in Randesund | |
| Sigvald Tønnessen | July 5, 1870 | Born in Farsund | |
| Stener Emil Tønnessen | November 26, 1919 | Born in Lista | |
| Sven Gerhard Tønnessen | January 23, 1922 | Born in Randesund | |
| Thom Tønnessen | June 16, 1906 | Born in Feda | |
| Thomas Tønnessen | December 24, 1910 | Born in Brekne, Lista | |
| Thorvald Sigbjørn Tønnessen | April 23, 1903 | Born in Flekkefjord | |
| Trygve Edvin Tønnessen | April 4, 1920 | Born in Steinsvold | |
| Tønnes Tønnessen | August 21, 1846 | Born in Kvinesdal | |
| Tønnes Kviljord Tønnessen | August 9, 1913 | Born in Lista | |
