These along with the 3 Esdras you mention and 4 Esdras (which is used in the Requiem Mass for the chant "Reqiuem aeternum") are part of the appendix to the official Vulgate, if I have my books straight.
By the way, I was in a bit of a rush, and regrettably overlooked stating the most important comment:
Herm! Where've you been? I've missed reading your comments! It's good to hear from you.
( In the computer-based Role-playing games I regrettably got into in college, there was often a "senseii" or "liegemaster" who aided newbies in their initial forays into combat, and then typically faded into the background once the player has learned sufficient combat skills to survive. I kinda feel like you were my senseii on FR's religion forum. :^D )