Richard O. Marsh
Col. Alexander Pavlovitch Braghine (1878-1942) is well known for his book on Atlantis, which he considers to have been the original homeland of many of the tribes of South America. He attributes the destruction of Atlantis to the consequences of at least one close encounter between Earth and Halley’s Comet, during the Holocene period, on 7th June 4015 BC. He maintains that this intrusion upset the orbits of Earth and Venus causing worldwide destruction. Many of Braghine’s catastrophist ideas are to be found in Immanuel Velikovsky’s later books without any reference to him. Braghine on the other hand was quite willing to acknowledge any use by him of other writer’s work. Some have explained Velikovsky’s omission as being the result of perceived racism on the part of Braghine.
Braghine in his The Shadow of Atlantis mentions a tribe of white-skinned ‘Indians’ called Paria in a region of Venezuela called Atlan. He claims that their legends refer to them having an original homeland beyond the ocean that had been destroyed in a terrible cataclysm. However I have been unable to find any other reference to this tribe apart from that of Frank Joseph who locates it in the Apure region between the Orinoco River and its tributary, the Apure. Braghine’s work was also published in French.*A few years earlier Richard O. Marsh published White Indians of Darien  in which he recounted his meeting with ‘white Indians’ in the remote jungles of Panama. However, claims of encounters with white Indians in Amazonia go back as far as the 16th century(a).When I saw some old photos (b) of these ‘white’ children, I was immediately struck by the fact that many were squinting and were suffering from albinism.*
Your compiler found Braghine’s book interesting and informative, although rather dated as it is now seventy years old. I could find no justification for deCamp’s condemnation of Braghine’s work.
Harold Tom Wilkins (1891-1959) wrote on a range of controversial subjects, from hidden treasure to UFO’s to Atlantis. He was of the opinion that if the Americas had not been the home of Atlantis it had at least been populated by refugees from there, but offers little hard evidence to support this contention. Wilkins gives a lot of attention to the inscriptions in a variety of unidentified scripts that have been found in both North and South America.
He covers a lot of familiar ground including lost cities, sunken kingdoms and extensive underground tunnel systems. Wilkins includes[363.p80] a fascinating tale of an isolated Andean tribe in North-Western Argentina speaking ‘pure’ Gaelic and more pertinent to this work a white tribe known as the Paria who lived in a village called Atlan located in the forest between the Orinoco and the Rio Apure. He also claimed that Quetzalcoatl, the ‘white god’ of the Aztecs was from Atlantis. Recently, Jason Colavito revealed(a) that Wilkins had lifted passages from Blavatsky Secret Doctrine in his Secret Cities of Old South America. If true, it could be that he also borrowed some material from a book published earlier by Richard O. Marsh entitled White Indians of Darien  in which he recounted his meeting with ‘white Indians’ in the remote jungles of Panama!
Wilkins reported in his book that on column 8 of the Great Hall of Ramses at Karnak there is an inscription referring to the loss of a drowned continent in the Western Ocean. I can find no corroboration of this claim. Even R. Cedric Leonard, who quotes Wilkins and is familiar with Egyptian hieroglyphics, has, surprisingly, not verified this inscription for himself. However, if this report is correct, I would suggest that the Western Ocean was a reference to the Western Mediterranean rather than the Atlantic.