From Mayflower History Website, http://www.mayflowerhistory.com by Caleb H. Johnson:
John Tilley was born in 1571 in Henlow, Bedford, England, and married the widowed Joan (Hurst) Rogers on 20 September 1596 in Henlow. He, his wife Joan, and his youngest daughter Elizabeth all came on the Mayflower to Plymouth in 1620.
John and his wife both died the first winter at Plymouth, orphaning the 13-year old Elizabeth Tilley in the New World. Elizabeth would later marry to Mayflower passenger John Howland.