reply to seniorvk@sasktel.net
Without knowing where they sailed from or to, and the probably date, it vwill be terribly difficult for anybody to help you
Ted
https://www.google.com/search?q=sailing+ships+in+1751&tbm=isch&tbo=u&source=univ&sa=X&ved=0ahUKEwifw7WT24DRAhWB7YMKHc79BuEQsAQIKQ&biw=1600&bih=736