History of the Andover Companies part of U.S. insurance history
https://www.andovertownsman.com/opinion/letters_to_the_editor/history-of-the-andover-companies-part-of-u-s-insurance-history/article_a6652443-2e79-57e5-b461-abc9aefe7c19.html
WEBMay 19, 2016 · Today, the Merrimack Mutual Fire Insurance Company is part of larger whole, the Andover Companies. Through Merrimack Mutual, Cambridge Mutual, and Bay State, the Andover Companies offer insurance products protecting homes and businesses.
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