Complex sentence: When the colony went into decline because many refugees returned to France, the d’Autremonts and Madame d’Autremont's sister, Marie Genevieve (d’Ohet) LaFevre and her spouse, Antonine Bartholemy Louis LaFevre, moved to Butternut Creek at Pittsfieldtown, near Cooperstown, New York.
Split into simpler sentences: When the colony went into decline because many refugees returned to France. The d’Autremonts and Madame d’Autremont's sister, Marie Genevieve (d’Ohet) LaFevre and her spouse, Antonine Bartholemy Louis LaFevre, moved to Butternut Creek at Pittsfieldtown, near Cooperstown, New York.