from archive.org: Lost At Sea
(original was at http://614columbus.com/article/5998/1380303188 but they already deleted the article.)
Scan from the original article in 614columbus: Lost At Sea
https://outdoorswimmer.com/news/walter-poenisch-inducted-to-ishof-39-years-after-historic-cuba-swim
https://www.swimmingworldmagazine.com
http://stentornews.com/questioning-diana-nyads-73-cuba-florida-swim-interview-daniel-slosberg/
http://marathonswimmers.org/forum/discussion/1571/diana-nyad-fact-check-site
Added 2023 from source:
Walter Poenisch (pronounced pain-ish)
NB