At a friend's house I found a printed copy of R2RS, aka MIT AI Memo 848, dated August 1985. I include the cover text below. Readers of Tolkien will appreciate the quote. I wonder if it might be included in the Guile manual for fun.
Mark AI Memo 848 The Revised Revised Report on Scheme or An UnCommon Lisp Data and procedures and the values they amass, Higher-order functions to combine and mix and match, Objects with their local state, the messages they pass, A property, a package, the control point for a catch-- In the Lambda Order they are all first-class. One Thing to name them all, One Thing to define them, One Thing to place them in environments and bind them, In the Lambda order they are all first-class. MIT Artificial Intelligence Laboratory