BTW that is the same Sam Harbison that co-authored "C: A Reference Manual" - https://www.amazon.com/Reference-Manual-Samuel-P-Harbison/dp/013089592X His memorial page is here - https://paw.princeton.edu/memorial/samuel-p-harbison-74 Those in the Pittsburgh area will recognize that family name. His father (also Samuel P. Harbison) obituary is here - https://www.nytimes.com/1976/07/20/archives/samuel-harbison-dies-in-pittsbu… Some information on his grandfather (and yes, also Samuel P. Harbison) is here - https://sites.google.com/site/1009davisavenue/history who ran this - https://en.wikipedia.org/wiki/Harbison-Walker_Refractories_Company Tom Lyon <pugs at ieee.org>) wrote: