1933? Really? The first meteorite about which such a claim was made AFAIK was, hmm, maybe it’s time to look this up again...
Evidence of Ancient Martian Life in Meteorite ALH84001?
http://nssdc.gsfc.nasa.gov/planetary/marslife.html
Okay, this is more like it, 1984, discovered in Antarctica, struck the Earth 13,000 years ago, left Mars for its trip 16 million years ago, etc. But anyway, regardless, please post that article you found, it has to be interesting!