Herbert Bird Tourtel
Petit Bôt

Dark grey hills, as guardians keeping
  Faithful watch, tower to the skies;
And the valley, safely sleeping,
  Silently between them lies.

Thence on either hand extending
  Loom the cliffs mysteriously,
A giant slowly bending,
  Half unwilling to the sea.

On the beach, the musing ocean
  To the unresponsive sand
Treasured wealth of deep emotion
  Casts with free and lavish hand;

Till the twilight air seems laden
  With the song of sylph on wave,
With the song of sad sea-maiden
  Pensive in her lonely cave.

And I hear the strange sweet stories
  Of its ancient legend lore –
Hear of vanished lands the glories
  Weird and wondrous  – now no more.

And the shades of evening falling
  Slowly steal about the bay
Star to sister star is calling
  Sweet voiced subtile zephyrs play.

This is from 'The Coming of Ragnorok and other poems', which was published 1895 in Guernsey by Frederick Blondel Guerin, and in London; Simpkin, Marshall, Hamilton, Kent & Co. Ltd. The book can be found in the Priaulx Library. 

This source would indicate that Herbert Bird Tourtel was the deputy editor of Daily Express, his dates are given as 1874-1931. His wife Mary Tourtel (1874-1948) was, more famously, the creator of Rupert Bear.

I assume that he was originally a Guernseyman. So for now he goes in the Lost Island category, but if anyone knows better then let me know.