Possibly Peter Graham, looks like that's to whom Hartwell attributes it too.: https://books.google.com/books?id=uYs2NbD-d4oC&pg=PA81&lpg=P...
Possibly Peter Graham, looks like that's to whom Hartwell attributes it too.: https://books.google.com/books?id=uYs2NbD-d4oC&pg=PA81&lpg=P...