Family Relationship of

Samuel Pierpont Langley

Astronomer and Aviation Pioneer

Union Army - U.S. Civil War

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John Thompson

Mary Thompson

Dorothy Thompson

Sarah Wise

Martha Parke

Joseph Williams

Martha Wheeler

Joseph Williams

Eunice Williams

John Williams

Lucy Gallup

John Williams

Eunice Eldredge

Mary Sumner Williams

Samuel Langley

Dr. George McClellan

Elizabeth Sophia Brinton

Samuel Pierpont Langley

Astronomer and Aviation Pioneer

General George B. McClellan

Union Army - U.S. Civil War