Family Relationship of

Samuel Pierpont Langley

Astronomer and Aviation Pioneer

[What does "times removed" mean?]

Author of Life with Father

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John Thompson

Mary Thompson

Dorothy Thompson

Sarah Wise

Dorothy Parke

Joseph Williams

Dorothy Morgan

Joseph Williams

Elizabeth Witter

John Williams

William Brewster

John Williams

Drusilla Brewster

William Ely

Mary Sumner Williams

Samuel Langley

Mary Ely

Henry Day

Samuel Pierpont Langley

Astronomer and Aviation Pioneer

Benjamin Henry Day

Evelina Shepard

Clarence Shepard Day

Lavinia Elizabeth Stockwell

Clarence Day

Author of Life with Father