Hi Angel,

You write 'We have stories that the Oshmans had a fruit store and they were 3 brothers and one sister."

Have you tried searching old digitized Eastern European city directories at:
https://genealogyindexer.org/
It is a free database.

Often occupations are listed.  You can do a regular or soundex search.

Sometimes people are listed in the directories with first and last name, but often with just first initial and last name.

Regards,

Sherri Bobish
Princeton, NJ