The poem is by John Crowe Ransom. I agree that it is not easily accessible online, nor it is one of the more commonly anthologized of his poems. Ransom was the author of three books of poems: "Poems about God", "Chills and Fever" and "Two Gentlemen in Bonds."

There are a good number of critical articles on Ransom's work which you can access at eNotes via the link below.