Based solely on what I have described: A brief summary of the events can be found in Livio 2011. See also Nussbaumer and Bieri 2009, Kragh and Smith 2003, and Trimble 2012 for more detailed descriptions.

The English translation of Lemaître’s: Lemaître 1931a.

Canadian astronomer Sidney van den Bergh: Van den Bergh 2011.

David Block went even somewhat further: Block 2011.

First, I obtained a copy: I am grateful to the Archives Georges Lemaître in Louvain, Belgium, and to Mme. Liliane Moens for providing me with a copy.