Previously published works on the Worthington family:

• A Genealogical Sketch of the Worthington and Plaskitt Families by Joshua Plaskitt (1886) - 20 pages Capt. John Worthington family – Link to a transcript.
  
  
• Genealogy of the Worthington Family, by George Worthington (1894), dealing with the descendants of Nicholas Worthington who sailed to America early in the seventeenth century;
  
  
• The Worthington Families of Medieval England, by Philip M. Worthington (1985), dealing with all known Worthington lines from 1200 to 1600;
  
  
• Coopers and Customs Cutters - Worthingtons of Dover and Related Families, by Janet R. Worthington (1997);
  
  
• The Worthington of Failsworth and their Descendants, by Philip M. Worthington (2005), covering the period 1550 to 2000.