Hirmenech, Hans-Pény (L)
Hans-Pény Hirmenech was the author of a 1906 book[1221], in French, in which he reviewed possible connections between the Celts, Basques and Atlantis. He claimed that Atlantis had been situated in the North Sea and that Helgoland was a remnant of it.
Hirmenech expressed the wild idea that the rows of standing stones at Carnac marked the tombs of Atlantean soldiers who fought in the Trojan War!
Hirmenech was a founding member of la Société Préhistorique Française (The Prehistoric Society of France)(a).
(a) https://www.prehistoire.org/
[I’m indebted to Stelios Pavlou for some details above.]