According to the public index of births (on Ancestry.com), HERBERT ARTHUR HARRIMAN JR. was born in Lawrence 30 May 1947.

The family lived at 86 River Street in Ballardvale.

Newspaper story from The Verde Independent for 3 Sept 2004, reporting that the possible skeletal remains of Herbert Arthur Harriman, 55, of the Verde Valley, who had gone missing in 2002, had probably been found pending positive identification. See link to story at https://www.verdenews.com/news/2004/sep/03/skeletal-remains-discovered-near-cherrybritentati/.

Herb had a very tragic ending. Shared by David Dearborn, there you have it. I wish I had something more solid, but the evidence seems to lean towards Herb having suffered a sad end.