United Insurance Company Now Unitrin

I have a really old policy of my mother's and I need to contact the company. I've had no luck so far. Do you know what happened to the United Insurance Company with an office of Chicago, Illinois?
I suspect that you are looking for a company now called "Unitrin". It is a whole conglomerate of insurance companies, and has a general inquiries address and contact information for Chicago.
Unitrin, Inc.
One East Wacker Drive
Chicago, Illinois 60601
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