I meant to add that I do have a copy of the book you mentioned and had flagged the page (p. 187) with his picture some time ago, and the 2 pages (pp 186, 321) with information on him. I had forgotten that he was in Co A until seeing your message. Was he related to the W H Campbell who was also in Co A?
Do you know where the picture in "Portraits of Conflict" was taken and who took the picture?
Very best
Don Parker