We already knew that President Barack Obama was distantly related to both former president George W. Bush and former Vice-President Dick Cheney. But did you know he was related to all other U.S. presidents, save one?

In fact, according to seventh-grader BridgeAnne d'Avignon, who attends Monte Vista Christian School in Watsonville, CA, they are all related to each other (save one). With the help of her 80-year-old genealogist grandfather, she determined that Obama and all other U.S. presidents, with the exception of Martin Van Buren, are related to John "Lackland" Plantagenet, a king of England and signer of the Magna Carta.

The two spent the past summer designing the first known family tree chart in history that shows the presidents' direct relationship. In fact, she also discovered that Obama is her own 11th cousin. BridgeAnne has written to Obama, in hopes that she will get a chance to present the president with the chart.

The U.S. Presidents Family Tree is set to be on display Oct. 28 at Monte Vista Christian School.

Originally on SNAFU-ed