I knew what you meant :-)
Questions before coming to a conclusion:
Does the FBI routine destroy files as a matter of housecleaning? Do/did they have a file on Stanley Anne? Is that one extant? Five years is not a long time to keep records before destruction.
Need to do some snooping, I guess.
Lst thought....maybe this is a parsing excercise. Perhaps the paper file was destroyed, but microfilmed files exsist.
I can go to footnote and get these FBI files:
Bureau Section Files, 1909-21
Mexican Files, 1909-21
Miscellaneous Files, 1909-21
Old German Files, 1909-21