Our project of a volume on Grete Hermann was born quite fortuitously out of a larger project on the historical debates surrounding the 1935 paper by Einstein, Podolsky, and Rosen (EPR), and our collaboration on that project was born even more fortuitously out of a breakfast conversation in Berlin between one of us [GB] and Don Howard, then Ph.D. advisor of the other [EC].1 GB was mentioning to Don that he wanted to publish a book centred around Erwin Schrödinger’s correspondence about EPR from the summer and autumn of 1935, specifically with Einstein, Bohr, Born, Pauli, and Teller. GB mentioned it might be fun to include also a translation of a little-known reply to EPR that Heisenberg had drafted but never published and was tucked away, in German, in a not-so-perfect transcription, in Volume 2 of Pauli’s scientific correspondence (Pauli 1985). Don—always keen to launch new avenues of exploration and collaboration—said that as a matter of fact he had a graduate student [EC] who was just then working on a translation of the ‘other’ response to EPR, and why did we not pool our efforts together?