(They are ninth cousins, five times removed, he says).
Roberts is Obama's 13th cousin, four times removed.
First, they stayed in an apartment that was three times removed: it belonged to friends of friends of their friends.
These children did not compel his specific interest, coming into his life, as they had, two or three times removed, these ex-step-in-laws-by-marriage.
The department, he said, will also push to have students who have been suspended three times removed from their schools permanently and placed elsewhere.
The records showed Gen Sir James Duff, an army officer and MP for Banffshire in Scotland during the late 1700s, was Cameron's first cousin six times removed.
Fred was the great-grandson of John Taylor Johnston, the principal founder of the Metropolitan Museum of Art, and greatgreat-grandson of abolitionist Lucretia Mott, and the first cousin eight times removed of Benjamin Franklin.
Cameron's first cousin six times removed was Gen Sir James Duff, an army officer, MP, and slave-owner who was awarded compensation after slavery was abolished in 1807.
His great-grandfather, Sir Orme Clarke, married into the family of Theodore Roosevelt, making him the president's first cousin, four times removed.
When parliament broke the legal chains in 1833, it also raised £17bn (in today's terms) to make good the losses "of human property" of some 46,000 Britons, one of them Mr Cameron's first cousin, six times removed.
