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Mary Catherine Lenz Wieman

One of the Aon employees who died was 43-year-old Mary Catherine Lenz Wieman, pictured here with her daughter Mary Julia. Wieman worked as a marketing executive for Aon and was visiting the World Trade Center on business when the buildings were attacked. Copy photo taken on Friday, Sept. 2, 2011.
Keri Wiginton/Chicago Tribune
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