Duris claimed to be a descendant of Alcibiades. He had a son, Scaeus, who won the boys' boxing at the Olympian Games "while the Samians were in exile"; that is, before 324BC. From 352 to 324 Samos was occupied by Athenian cleruchs who had expelled the native Samians. Duris therefore may well have been born at some date close to 350BC, and, since his main historical work ended with the death of Lysimachus in 281 BC, must have died at an unknown date after that. Some modern sources assume that the Olympic victor Scaeus must have been the father, not the son, of the historian Duris; hence he is described in at least two encyclopedias as "son of Scaeus". The ancient sources, admittedly meagre, do not support this. Duris was the brother of Lynceus of Samos, author of comedies, letters and the essay "Shopping for Food".