William Crossing (1847–1928) was a writer and chronicler of Dartmoor and the lives of its inhabitants. He lived successively at South Brent, Brentor and at Mary Tavy but died at Plymouth, Devon.
Crossing was born in Plymouth on the 14 November 1847. Early in his youth he was fond of Dartmoor, his early associations centring on the neighbourhood of Sheepstor, Walkhampton, Meavy, and Yannadon. He acquired a taste for antiquities from his mother. He later went on to explore , Coryton, Lydford, Okehampton, and the northern borders of the Moor, as well as South Brent, on its southern verge.
After finishing his schooling in Plymouth, he went to the Independent College at Taunton, and then returned to finish his education at the Mannamead School (Later called Plymouth College).
His earliest literary efforts were in the direction of fiction - 'thrilling romances,' composed for the delectation of his school-fellows. His first essay in poetry was at the age of fourteen, when a poem written by him appeared in the pages of Young England, December, 1861.
In 1863 he went for a short coastal voyage to Wales, and gained a liking for the sea; and in 1864 he joined a vessel bound for Canada, and had a narrow escape, nearly being crushed by an iceberg during the night. Returning from this voyage, he took to business pursuits in Plymouth, and then recommenced his Dartmoor explorations.
In 1872 he married and settled down at South Brent. In the previous year he began making notes about his rambles, without, however, any systematic arrangement; after his marriage he seems to have become more methodical, and to have decided to write a book descriptive of the moorland district. In the 1890s he published numerous other works and his Guide to Dartmoor, illustrated by Philip Guy Stevens in 1909. He was much afflicted by rheumatism in the last 25 years of his life and in 1921 his wife died. From July 1925 to his death Crossing was an invalid and he died at Plymouth, 3 September 1928.
He is now considered one of the best authorities on Dartmoor and its antiquities, having made it the subject of his life's work. He was one of the earliest members of the Dartmoor Preservation Association, joining it immediately on its formation.