Boats of Sennen, lyrics by Kitty Lee, music by Ralph Dunstan published in the Cornish Song Book, Lyver Canow Kernow in 1929. Kitty Lee or Katherine Lee was the pen name of Katherine Jenner, formative member and Bard of Gorsedh Kernow. She published six novels and and three non fiction works on Christian symbolism as well as the poetry anthology Songs of the Stars and the Sea in 1926. (Oxford Univerisy Press) which included the above. Her husband was Henry Jenner, one of the driving forces behind the Celtic Revival and Cornish Language movemement in Cornwall. In her time she was the more famous of the two.
See
The Cornish Song Book: Lyver Canow Kernewek