x) Completely by accident I have landed on Roger Grosjean aka FIDO:
"[After WW2], he left for Corsica and began what was to be a very successful research career spanning twenty years studying the Corsican megalithic civilization. He uncovered quite splendid sculpted menhirs at Filitosa, Cauria and Palaghju, for example, as well as megalithic fortified settlements at Alo-Bisucce, Cucuruzzu and Araghju."
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"[After WW2], he left for Corsica and began what was to be a very successful research career spanning twenty years studying the Corsican megalithic civilization. He uncovered quite splendid sculpted menhirs at Filitosa, Cauria and Palaghju, for example, as well as megalithic fortified settlements at Alo-Bisucce, Cucuruzzu and Araghju."