These stories have only once been all collected together, and that was in the limited-edition book The Martian Chronicles: The Complete Edition (2009). I've mentioned this book before, and have also mentioned my love-hate relationship with it. On the one hand, the book was a great idea, but on the other hand, it turned out to be far from "complete".
One section of that book is titled "the other martian tales of Ray Bradbury", and is based on a selection of stories originally collated by Marc Scott Zicree, writer of the famous Twilight Zone Companion. Zicree figured out which other Mars-related stories Bradbury wrote, and also dug around in Ray's archives to find any that remained unpublished. Zicree's proposed book didn't happen, but the selection of stories was absorbed into the Complete Edition. Actually, not everything Zicree collated ended up in the book; the editors of the Complete Edition decided to only include stories set on Mars, and to eliminate any that were set elsewhere. A reasonable choice... except not all of The Martian Chronicles is set on Mars... so they hadn't thought it through...
Here's the list of "other Mars stories" used in the so-called Complete Edition, which I work through in the podcast episode (UPDATE: I somehow missed "The Martian Ghosts" of this list - but I've added it now):
- The Lonely Ones
- The Exiles
- The One Who Waits
- The Disease
- Dead of Summer
- The Martian Ghosts
- Jemima True
- They All Had Grandfathers
- The Strawberry Window
- Way in the Middle of the Air (included in the "other" section, because the Complete Edition contains a version of The Martian Chronicles which deliberately omits this story)
- The Other Foot
- The Wheel
- The Love Affair
- The Marriage
- The Visitor
- The Lost City of Mars
- Holiday
- Payment in Full
- The Messiah
- Night Call, Collect (aka I, Mars)
- The Blue Bottle
- Dark They Were, and Golden Eyed (aka The Naming of Names)
Anyone who is expecting any major revelations in this list will be disappointed. It is mostly a list of (a) stories which are easily available in Bradbury's other books; (b) unfinished stories; and (c) tiny fragments and bridging material, pages or paragraphs left on the cutting-room floor. The only truly interesting find here is "They All Had Grandfathers".
Please listen to the episode, where I go through the intricacies of these stories, and explain how a couple of the fragments such as "The Wheel" and "The Disease" reveal something of Bradbury's process of assembling The Martian Chronicles.