The bank was established in 1889 as FIRST FEDERAL SAVINGS AND LOAN ASSOCIATION OF DEFIANCE.

[2] In March 2008, the company acquired Pavilion Bancorp Inc. and its subsidiary, the Bank of Lenawee.

[4] In February 2014, the company announced a merger with First Community Bank and entered the Columbus, Ohio market.

[7] In January 2020, the holding company for First Federal Bank of the Midwest merged with United Community Financial Corp.

[8] In July 2024, the company announced its intention to merge with WesBanco in an all stock deal valued at $959 million.