Indeed, schemingmind.com indicates a legitimate Austin Lockwood.
Too bad he quit; it would be interesting to know what was this "professional statistical advice was that his methodology was fundamentally flawed" -- as far as I am familiar with Polar_Bear's approach to T3 methodology, I would not characterize any flaws (which all T-X methods do have to a varying degree) as fundamental.
I also believe it was him. I am not familiar with internal ICCF's ranks, so I googled it when I wrote my answer to Irontiger and missed the change. He had minor rank back then, but he was the past ICCF-forum admin.
More details: he sent me two samples. The first one was easily obvious engine user, he revealed later it was last ICCF champion Marjan Semrl. The second one was T3 borderline and I recognized games of Tonu Oim from IX. ICCF WCCC. Oim had there the highest T3 human CC matches known: 89%, and this is known exception. I wrote him I knew these games and honestly reported them as suspicious, but inconclusive, requiring deeper look. He quit our correspondence then, thinking perhaps it was flawed and useless.