University of Illinois
University of Illinois: Modern American Poetry: Theodore Roethke (1906 1963)
Six reviews on Roethke's following works: "Cuttings," "Frau Bauman, Frau Schmidt, and Frau Schartz", "The Flight"(from "The Lost Son"), "I Knew a Woman," and "North American Sequence."
Other
Laze.net: Theodore Roethke's "I Knew a Woman"
Read Ryan A. MacMichael's essay on Roethke's poem "I Knew a Woman".