Family Relationship of

Samuel Pierpont Langley

Astronomer and Aviation Pioneer

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Author of Tarzan and John Carter

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John Thompson

Mary Thompson

Dorothy Thompson

Sarah Wise

Robert Parke

Joseph Williams

Margaret Parke

Joseph Williams

Margaret Rockwell

John Williams

Hannah Blodgett

John Williams

Tyler Burroughs

Mary Sumner Williams

Samuel Langley

Abner Tyler Burroughs

Mary Rice

Samuel Pierpont Langley

Astronomer and Aviation Pioneer

George Tyler Burroughs

Mary Evaline Zieger

Edgar Rice Burroughs

Author of Tarzan and John Carter