Several geologists have now debunked the Port Orford meteorite as a hoax. The small remaining pieces said to have been from the original collection are strongly suspected as belonging to Imilac, Chile, South America, meteorite shower. The best current source for this data is "Smithsonian Research Reports #72, Spring, 1993. Scientists and historian debunk Port Orford, Ore., meteorite hoax" If you have not tracked this citation down, please do not proceed researching this particular legend. BTW, the Oregon Historical Society Research Library has an extensive file on Meteors and Meteorites in their Vertical File, including clippings from many newspapers and scientific papers. About 30 citations can be found on-line.
Few rocks are so well documented or studied as meteorites.