Did one person in the family outclass the others?
There is sometimes evidence of this on the census.
Some things to consider:
If you have an adult sibling group, did the oldest son perhaps inherit from the Old Country where only the oldest son was a recognized heir? If so he may be living in a house while the others rent or be able to afford rent beyond his obvious income. What is his profession?
Is he perhaps a factory worker living next to a doctor or a bond salesman? If you can't really determine how much the real estate they live in was worth on the market that year or in that place and use a inflation calculator the kinds of work neighbors do can be telling!
You may want to research the general inheritance laws and/or practices in the ethnic country of origin. What went on in Germany did not always go on in Hungary, but Germans in Hungary might continue to practice the same rules of inheritance, as an example.
Is he living in an ethnic ghetto or near other family members. Possibly the person who has more or earns more is the first to leave the ghetto for the suburbs.
Did a daughter "marry up?" In days past - and that includes the 1950 census - when most women became wives, housewives, and mothers, and were totally dependent on a husbands income, this may be evident in the profession of her husband as compared to that of her siblings. Sometimes it is because a daughter had a father with an inheritance to provide a formal or informal dowry that she was able to marry up. Another possibility is that college was afforded for the daughter and there she met a man who was educated or a professional as a husband.
You may be able to find titles to land or actual wills and other legal documents that would show inheritance beyond a census.
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