Other ties established by the genealogical society linked Obama to former presidents Gerald Ford, Lyndon Johnson and Harry Truman, and to Civil War General Robert Lee.

• 该学会还发现，奥巴马与美国前任总统杰拉德?福特、林顿?约翰森和哈里?特鲁曼，以及南北战争时期的罗伯特?李将军都是亲戚。