Complex sentence: The third and final theory is that Joanna Carter may have been connected with or influenced by a Sister Carter from Fulneck, England, who started teaching embroidery at a Moravian settlement in Co Antrim in 1793.
Split into simpler sentences: The third and final theory is that Joanna Carter may have been connected with or influenced by a Sister Carter from Fulneck, England. She started teaching embroidery at a Moravian settlement in Co. Antrim in 1793.