Key points are not available for this paper at this time.
Lesley Byrd Simpson, The Spanish Crusoe: An Account by Maese Joan of Eight Years Spent as a Castaway on the Serrana Keys in the Caribbean Sea, 1528-1536, The Hispanic American Historical Review, Vol. 9, No. 3 (Aug., 1929), pp. 368-376
Lesley Byrd Simpson (Thu,) studied this question.