How many adult married women survived the first winter to prepare the meal?

According to a letter, hand-written by a Pilgrim named Edward Wintston, all of the Pilgrims who were present at the first Thanksgiving were survivors of the voyage on the Mayflower. Those present at the first Thanksgiving feast were 22 men, 13 children, 14 teenagers, and four married women. A total of 53 pilgrims were there. There were also some 90 Indians in attendance. Also derived from the letter is that the Indians killed 5 deer for the feast and brought them to share with the Pilgrims.