John O'Brien (Q114731643)
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American businessperson and board member, former CEO of Allmerica Financial Corporation (now The Hanover Insurance Group, Inc.) and a director at The TJX Company
- John F. O'Brien
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | John O'Brien |
American businessperson and board member, former CEO of Allmerica Financial Corporation (now The Hanover Insurance Group, Inc.) and a director at The TJX Company |
|