Looks like the Sing Out reference to the song is actually from the 1974 edition (Vol. 23). The 1950s ones are digitized, but sadly the 1974 edition is not. I believe Joe has a relatively complete collection, but if he doesn't find his copy, my local library has a mostly-complete holding and I'll check it some time in the new year.

Sadly no library remotely close to me holds the Poets Club reference to the book. Hopefully one near you has it? You may be in luck if you live in the Midwest.