 It has been claimed, although not proven that because the Munro of Culcairn family was living in London, England, it was assumed that they had died out, even though they had not.The Munros who make this claim are in possession of a ship's log which belonged to their ancestor Thomas Munro who they claim to be the same Thomas Munro who was the second son of John Munro, 2nd of Culcairn.However, this cannot be proved and 19th-century historian Alexander Mackenzie, who is known for his inaccuracies states that this Thomas Munro died at sea in 1778 and does not mention him having any children.