Ancestry of
Samuel Pierpont Langley

Astronomer and Aviation Pioneer

Mary Sumner Williams

View famous kin of Mary Sumner Williams

• • Mother of Samuel Pierpont Langley — 2nd Generation
  • Ahnentafel No:
  • 3 
  • Father:
  • John Williams Jr. 
  • Mother:
  • Nancy Dowse   
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  • Spouse Name:
  • Samuel Langley III
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  Samuel Pierpont Langley (Ahnentafel No:1 )

• Sources for Mary Sumner Williams

  • ¹ Roberts, Gary Boyd and William Addams Reitwiesner, American Ancestors and Cousins of The Princess of Wales, Baltimore: Genealogical Publishing Co., Inc. (1984), 46.