I think I posted this request long ago and had no answers but I'm still hoping you might be able to help. I'm writing a biography of the modernist radical poet Lola Ridge and her executor wrote that Cather said (or wrote?) that Lola Ridge was writing better poetry than any other modern American. Since the executor is supposed to be writing her own biography (for the last forty years) she will not tell me where she found this and I have been unable to located its source. Any ideas?