The New American Poetry 1945-1960 anthology edited by Donald M. Allen was a bible for me when it first appeared. I still tap into its statements of poetics at the back often ... and have bought many books by the poets within its pages. Certainly I have not been alone - it is a very influential collection. But ... have you ever thought who could have been left out? Amazing. Someone has done the research for us - you can find the list here: http://mimeomimeo.blogspot.com.au/2012/09/we-are-sorry-to-inform-you.html Interesting reading.