Sydney Wignall

[2] He led a Welsh team of climbers to climb the 25,355-foot-high Gurla Mandhata, Tibet, in 1955, was sponsored by Time Magazine and the Liverpool Post.

He located the vice-flagship of the Spanish Armada the Santa Maria de la Rosa in 1968, which was off the coast of Ireland.

He was also involved in searching for Sir Francis Drake's lead coffin, and the American warship Bonhomme Richard which sank in 1779, the submarine Resurgam off Rhyl, and the Confederate blockade-runner Lelia, lost north of Prestatyn in 1865.

[2] The search and diving difficulties involved with the Santa Maria de la Rosa was captured in the book Full Fathom Five: Wrecks of the Spanish Armada by Dr Martin.

[7][8] In 1970 he helped with the wreck of Spanish Armada ship El Gran Grifón off Fair Isle excavated with Colin Martin.