About a week after Flores' claim first became known, the Gerontology Research Group said there were several problems with his claim.
Nestor reportedly had original old passports from the Austrian-Hungarian Empire and the Soviet Union, major powers who occupied Western Ukraine since 1891; however, he never provided copies to Guinness, the Gerontology Research Group or even Ukrainian scientists.
Perhaps because he served for Germany, no one noticed his status as a World War I veteran until his family contacted the Gerontology Research Group in May 2007.
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