When you're looking for literary influences, you can't just do computer comparisons to find
information. You also have to know your English writing down to your bones. There, again,
Don Foster was perfectly suited to do this type of investigation. He could read Henry's piece on
eskimos and know that the source of
that piece was Mallet.
Don's access to private databases to which his English department at Vassar had subscriptions allowed
him to do searches for songs and poems to help him identify influences on Henry as, for example, O'Keefe,
whose song Amo Amas appears in Henry's music manuscript book.