Family Relationship of

Samuel Pierpont Langley

Astronomer and Aviation Pioneer

Founder, Avery Dennison Corp.

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Richard Treat

Honor Treat

James Treat

David Deming

Rev. Salmon Treat

Martha Deming

Dorothy Treat

Martha Howell

Eunice Brewster

John Williams

Dorothy Crary

John Williams

Andrew Jackson Avery

Jane Eliza Hewitt

Mary Sumner Williams

Samuel Langley

Oliver Perry Avery

Emma Miller Dickinson

Samuel Pierpont Langley

Astronomer and Aviation Pioneer

Ray Stanton Avery

Founder, Avery Dennison Corp.