Does anyone know where to find the first two versions of First Confession by Frank O'Connor?

I'm reading a neat book called The Art of Revision by Peter Ho Davies and it mentions three different versions of First Confession by Frank O'Connor. On further Googling I found this (link): "O’Connor’s first version of the story was published as “Repentance” in Lovat Dickson’s Magazine in 1935. In 1939, it appeared with some changes under the title “First Confession” in Harper’s Bazaar, and then in its final form in the book Traveller’s Samples in 1951."

I seem to only be able to find the final version online but I'd like to read the previous versions to see how it changed over time. Has anybody ever seen the previous versions?