A recent comment by Horacio A Nigro of Montevideo, Uruguay, may have solved the mystery of the birthplace of Major Rowland Raven-Hart, whose Canoeing in Ireland covered several inland navigations in the 1930s. You can see Horacio’s comments, and the subsequent discussion, on my page here.
But, on his own site, Horacio has cast light on Rowland-Hart’s career in radio, working in South America between the Kaiser’s War and Hitler’s War, and he has also very kindly provided an English-language version here as a PDF.
Irish waterways history 