Contemporary sources claim Darragh's uncorroborated story is historically unsubstantiated. Niven also raises doubts about Steward's uncorroborated and unsubstantiated claims of having been Wilder's lover. His existence is unconfirmed archaeologically and uncorroborated by any other source. His existence is unconfirmed archeologically and uncorroborated by any other source. The brief raised questions "regarding the admissibility of uncorroborated and unrecorded confessions" by Milke. But Hegesander is notoriously unreliable, and the story is entirely uncorroborated. No person may be convicted on the uncorroborated testimony of a single witness. He found that no newspaper would print the story on largely uncorroborated and unreliable evidence. The alleged confession was uncorroborated, however, and Milke is adamant it did not occur. He interviewed somebody out in the Mid-west and put an uncorroborated testimony in his book. Berle found Chambers' information tentative, unclear, and uncorroborated. Constantine Porphyrogenitus's account betrays Georgian influence, but some of its details are uncorroborated elsewhere. The EEOC investigated, then dismissed the complaint as uncorroborated. He has cited Holocaust denier David Irving to make uncorroborated and anti-Semitic claims. This poignant depiction is uncorroborated and "unlikely", according to biographer James Curtis.