There’s no way anyone could remember everything one has read on the subject or where it might have appeared, but I do have a vague recollection of the name Systematics appearing in connection with Cecil Goeldner, the husband of the half-sister of Stanley Armour Dunham. Cecil installed a computer program for a bank in Saudi Arabia
here it is on his obituary:
http://www.derbyinformer.com/obituaries/article_4d31e798-ac57-51f3-9a09-afe8dc7bdfd0.html
You’ll find more on Cecil and Virginia a few pages back on this thread.
Jim Norman (formerly of Forbes) documented the involvement of Rose Law Firm with Systematics. It was Arkansas after all, and Rose was THE law firm to hire.
The following linked article doubts Jim Norman and Orlin Grabbe's theories about Foster but also includes some documented facts. Norman's Questionable Theory on Foster