Complex sentence: To evade the injuction she was compelled to take shelter under the Toleration Act placing her among the dissenters, and severed from the Connexion several eminent and useful members, among them William Romaine and Henry Venn.
Split into simpler sentences: To evade the injuction, this compelled her to take shelter under the Toleration Act. This placed her legally among the dissenters, and had the effect of severing from the Connexion several eminent and useful members, among them William Romaine and Henry Venn.