October 15, 1752. Elizabeth Backus, a fifty-four widow and mother of Reverend Isaac Backus, was arrested and imprisoned for two weeks for failing to pay the church tax that went to the official (Congregational) church. In 1728 an Act was passed by the General Court of Massachusetts, exempting Baptists from the tax, but that was the personal tax only, the property tax was still liable. ABHS has many writings of Isaac Backus and microfilms of his personal papers.