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Who Do You Think You Are? Photos

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Celebrities explore their family trees in this series. In each episode, a star takes a globe-spanning journey of self-discovery to uncover the mysteries of his or her ancestral history. Their familial stories in turn shed light on events in American and world history.

Who Do You Think You Are - Season 1 - "Brooke Shields" - Brooke Shields at the New York Historical Society
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Who Do You Think You Are - Season 1 - "Brooke Shields" - Brooke Shields at the New York Historical Society

Who Do You Think You Are - Season 1 - "Sarah Jessica Parker" - Josh Taylor, Sarah Jessica Parker at the New England Historic Genealogical Society
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Who Do You Think You Are - Season 1 - "Sarah Jessica Parker" - Josh Taylor, Sarah Jessica Parker at the New England Historic Genealogical Society

Who Do You Think You Are - Season 1 - "Matthew Broderick" - Matthew Broderick, Gordon Jones
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Who Do You Think You Are - Season 1 - "Matthew Broderick" - Matthew Broderick, Gordon Jones

Who Do You Think You Are - Season 2 - "Rosie O'Donnell" - Rosie O'Donnell and brother Ed O'Donnell
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Who Do You Think You Are - Season 2 - "Rosie O'Donnell" - Rosie O'Donnell and brother Ed O'Donnell

Who Do You Think You Are - Season 1 - "Lisa Kudrow" - Lisa Kudrow
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Who Do You Think You Are - Season 1 - "Lisa Kudrow" - Lisa Kudrow

Who Do You Think You Are - Season 2 - "Rosie O'Donnell" - Rosie O'Donnell
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Who Do You Think You Are - Season 2 - "Rosie O'Donnell" - Rosie O'Donnell

Who Do You Think You Are - Season 1 - "Sarah Jessica Parker" - Sarah Jessica Parker
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Who Do You Think You Are - Season 1 - "Sarah Jessica Parker" - Sarah Jessica Parker

Who Do You Think You Are - Season 2 - "Rosie O'Donnell" - Rosie O'Donnell
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Who Do You Think You Are - Season 2 - "Rosie O'Donnell" - Rosie O'Donnell

Who Do You Think You Are - Season 1 - "Emmitt Smith" - Emmitt Smith
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Who Do You Think You Are - Season 1 - "Emmitt Smith" - Emmitt Smith

Who Do You Think You Are - Season 1 - "Matthew Broderick" - Matthew Broderick
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Who Do You Think You Are - Season 1 - "Matthew Broderick" - Matthew Broderick

Who Do You Think You Are - Season 1 - "Sarah Jessica Parker" - Sarah Jessica Parker
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Who Do You Think You Are - Season 1 - "Sarah Jessica Parker" - Sarah Jessica Parker

Who Do You Think You Are - Season 1 - "Emmitt Smith" - John Caknipe, Emmitt Smith
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Who Do You Think You Are - Season 1 - "Emmitt Smith" - John Caknipe, Emmitt Smith

Who Do You Think You Are - Season 1 - "Susan Sarandon" - Susan Sarandon, son Miles Robbins
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Who Do You Think You Are - Season 1 - "Susan Sarandon" - Susan Sarandon, son Miles Robbins

Who Do You Think You Are - Season 1 - "Spike Lee" - Spike Lee
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Who Do You Think You Are - Season 1 - "Spike Lee" - Spike Lee

Who Do You Think You Are - Season 2 - "Tim McGraw" - Tim McGraw and early American historian Warren R. Hofstra,
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Who Do You Think You Are - Season 2 - "Tim McGraw" - Tim McGraw and early American historian Warren R. Hofstra,

Who Do You Think You Are - Season 1 - "Spike Lee" - Spike Lee
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Who Do You Think You Are - Season 1 - "Spike Lee" - Spike Lee

Who Do You Think You Are - Season 2 - "Rosie O'Donnell" - Rosie O'Donnell
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Who Do You Think You Are - Season 2 - "Rosie O'Donnell" - Rosie O'Donnell

Who Do You Think You Are - Season 2 - "Tim McGraw" - Tim McGraw and Professor Philip Otterness, Palatine Historian
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Who Do You Think You Are - Season 2 - "Tim McGraw" - Tim McGraw and Professor Philip Otterness, Palatine Historian

Who Do You Think You Are - Season 1 - "Matthew Broderick" - Matthew Broderick, Gordon Jones
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Who Do You Think You Are - Season 1 - "Matthew Broderick" - Matthew Broderick, Gordon Jones