Hi Judi,

Within NYC, Southern District covers Manhattan & Bronx. 

Eastern District covers Brooklyn, Queens, Staten Island.

But, you don't have to naturalize in the boro in which you live.  She may have filed papers near where she worked in the City.

You can get copies of her nat papers from NARA.
https://www.archives.gov/nyc/finding-aids/naturalization-holdings

It looks like Ancestry and FamilySearch only have SD index past 1944 or 1946, but not the actual records.

Based on her age when she arrived, if she did naturalize it would be after those years.

The nat papers will give her exact date of arrival, and probably contain a photo of her.  The only way to know if it's your Eliane is to see the papers.

Nat papers never list parents names.  If she was married or had children when she naturalized than it would list those names.

It's important to look at the names of the witnesses on the nat papers.  I've made many connections by doing that.

I don't recall who else is searching HIRSCHFELD, and with the town Strassburg.  Maybe they will see your post?

Glad the hurricane missed you.  It's coming up the East Coast towards us  now. 

Take care,

Sherri Bobish
Princeton, NJ