I wonder if there might have been two different strains both of which were, coincidentally, dubbed "Ames"? There doesn't seem to have been any standardization in the naming process, nor any central clearinghouse of names.
IMO.............Correct conclusion.....
:-(
If there are two different strains that were coincidentally named Ames, that really would complicate things, as if the story weren't hard enough to unravel already.