This seems to fit for Irma , David and Erika.
1940 UNIVERSITY CITY, ST. LOUIS, MO
6331 DELMAR ST.
Dave, age 33, packer, dress factory, born Chekloslovakia
Irma, age 30, wife, dress maker, at home, born Hungary
Erika, age 10, daughter, born Austria
all are shown as living in Vienna Austria in 1935 (a question asked in the 1940 census)
So this makes it seem they must have immigrated after 1935
There is a 1945 naturalization card for an Irma Spitzter
which shows her name as Irma White, formerly Spitzer
she is living at 248 N. Larchmont Blvd. Lost Angeles, CA
she is age 36
the age fits for your Irma as well as the place, but she is White not Lee ??
she is indexed inthe US naturalization index under both White and Spitzer
There is a death for a David Spitzer born March 28, 1907, died Aug. 21, 1993 Los Angeles - SS# came from MO so that matches
California death index shows his mother as GOLDSTEIN, no first name
there is also a Naturalization which fits for age for him, but which shows his name as Spitzer, formerly Desider
I found a passenger list for them coming to US and it has David listed as Desider so that is what the formerly Desider referred to in his Naturalization
New York, Passenger Lists, 1820-1957 about Erika Spitzer
Name: Erika Spitzer
Arrival Date: 30 Mar 1939
Birth Date: abt 1931
Birth Location: Vienna, Austria
Birth Location Other: germany
Ethnicity/ Nationality: Hebrew
Friend's Name: Mr. Spitzer
Port of Departure: Le Havre, France
Port of Arrival: New York, New York
Ship Name: Normandie
The image shows
Irma, age 29, housewife, born Velkidina, Czechoslov, good health, 5'-4", fair complexion, brown hair, brown eyes
Desider, age 31, electrician, born Vitra, Czechoslov, good health, 5'-6", fair complexion, brown hair, brown eyes
Erika, age 8, school, born Vienna, Germany, good health, 4'-10", fair complexion, brown hair, brown eyes - accompanying parents
all show last permanent address Vienna, Germany (why it says Germany and not Austria I have no idea)
it asked for the name and address ofrelative or friend in Country where they came from and it shows for all of them
Home-Unten, Augastrenstrasse 14/15 Vienna-Germany
they are going to St. Louis, MO
relative in US is Uncle, Mr. Spitzer, 7915 Park Rive-Richmond Heights
St. Louis, MO
I have not found a death for Irma - when she died was she using the name LEE ?
Did Erika use the name LEE also or did she stick with Spitzer - I have not beenable to find marriages for Irma or Erika.