IONIA — A historic building in downtown Ionia could become the new home of the community’s library — thanks to a generous donation from the bank that recently occupied it.Mercantile Bank of Michigan donated its downtown Ionia building at 302 W. Main St. to the Ionia Community Library. The bank announced the decision in a news release issued Wednesday, Jan. 13. Ownership is set to transfer to the ICL in March.Gale Yeomans, president of the ICL Board of Trustees, said the entire