Linda, you could be right about the "Zargon" guy. It seems to be all theater. Not sure if John is that big of a deal though for anyone to put forth the effort to coattail on what he has created over the years. It has the look and feel to me anyway as a one man show. Like RdL, aka The Roach... Mr. Lady Gaga back on History's Current Events.
Floyd Odlum I believe if this is the same guy I'm thinking of was a Wall Street fancier, ran with Joe Kennedy. He was instrumental in driving Mitt Romany's father's political career, George. Helped the Huntsman family build their fortunes and coincidentally one member of that family ran in the primaries against Mitt.
All I know is that he was said to be an inside trader, knew right when to pump and dump stock. One company you cited happens to be one of those companies, Atlas.
He had the rep of a man who knew how to deal insider information in the financial markets for later cashing them in for political favors like with Joe.
If he seen you as a reasonable prospect for gaining a future potion of political power that could benefit him in enterprise you got the information. If not, you got to to the twist in the winds of change so to speak.
Ironically he died the same year as Howard Hughes. He was in many ways apart of the same circles of money, power and influence of the industrial war complex as Hughes was so famously known for although I believe Hughes had more of an engineering interest in the aerospace ventures he created where as Odlum seem to be only interested in what profits he could mine out of his ventures in that niche of the spooky black book economy.
Other than that I really don't know much about the dude.
If you have things you would like to expound about him here, I'm all eyes...