"According to the San Francisco Herald of July 24, 1851, blood and flesh, with pieces ranging in size from a pigeon's egg to a small orange, descended in a two-to three minute shower on an Army station at Benicia, California, covering a spot of ground 30 yards wide and 300 yards long.
Source: Clark, Jerome, Encyclopedia of Strange and Unexplained Physical Phenomena, Detroit: Gale Research Inc, 1993, pg. 272.
Oakland, 1943: stones fall from the sky from no apparent source.Source: Clark, Jerome, Unexplained! Detroit: Visible Ink Press, 1993. p. 125.
More on the latter if I can get a hold of it.
The Benicia location is apparently the former location of the Benicia Arsenal, and the present location of the modern-day museum. Fun tidbit: this was one of the few locations of the United States Army Camel Corps.
Publicly, Mysterious SF says: It's hard to imagine a scenario that even makes blood and flesh falling from the sky even remotely plausible.
Privately, Mysterious SF says: More artifacts from Magonia.
