The Society of Mayflower Descendants in the Commonwealth of Pennsylvania. Descendants of the 102 Mayflower Passengers. Our Society consists of descendants of the Pilgrims, the 102 English passengers who came to New England from Holland and England aboard the ship Mayflower in 1620. TO PERPETUATE THE MEMORY OF OUR PILGRIM ANCESTORS, AND TO PRESERVE THEIR RECORDS, HISTORY AND ALL FACTS RELATING TO THEM, THEIR ANCESTORS AND THEIR POSTERITY. THE SOCIETY ATTEMPTS TO ACCOMPLISH THIS THROUGH ITS EDUCATION PROGRAMS AND CIVIC ACTIVITIES.