Claim: Madelyn Lee Payne Dunham (October 26, 1922 – November 2, 2008)  was the American paternal grandmother of Barack Obama, the 44th President of the United States.
Evidence: Madelyn Lee Payne Dunham (/ˈdʌnəm/ DUN-əm; October 26, 1922 – November 2, 2008) was the American maternal grandmother of Barack Obama, the 44th President of the United States. 
Madelyn Lee Payne
(1922-10-26)October 26, 1922
Peru, Kansas, U.S. November 2, 2008(2008-11-02) (aged 86)
Honolulu, Hawaii, U.S. Maternal grandmother of Barack Obama United States Barack Hussein Obama II (/bəˈrɑːk huːˈseɪn oʊˈbɑːmə/ (listen) bə-RAHK hoo-SAYN oh-BAH-mə; born August 4, 1961) is an American politician and attorney who served as the 44th president of the United States from 2009 to 2017.