USCIS Documents #records

Robert Hanna

All four of my grandparents and two of my great grandparents emigrated to the US from Eastern Europe between 1905 and 1914.  I was able to request records from USCIS for both my grandfathers as I had their file numbers.  I did not have the file number for my great grandfather so I requested a records search.  I paid the fees for all.  Eight months later I am still waiting.  I have requested updates and have been told that they are getting close.  My grandfathers were both naturalized and their naturalizations included my grandmothers.  I don't know whether or not my great grandfather ever applied for naturalization.  Does anyone know if there would be separate USCIS files for my grandmothers and my great grandmother or would their papers be included with their respective husbands?  Considering the long wait for responses from USCIS, if there are separate files, I don't want to waste any more time before applying for searches.
Robert Hanna
Chanan/Hanan/Hanne (Warsaw); Blumenblat (Sarnaki); Karasik, Thomashow, Cohen (Babruysk); Rubinstein, Bunderoff, Pastilnik, Nemoyten, Diskin (Minsk)

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