7th grader’s genealogy research shows most U.S. presidents are related A summer school project by a seventh-grade student has sparked widespread fascination after she reportedly traced the family roots of nearly every United States president to a single medieval English monarch — King John of England, also known as John Lackland, who signed the historic Magna Carta in 1215. The student, identified in reports as Bridge Anne de Avignon, spent several months constructing what is being described as one of the most comprehensive presidential family trees ever attempted. Her findings suggest...