I an pretty sour that the answer to this problem is
1.) John F. Kennedy
Born: May 29, 1917; Brookline, Massachusetts
Died: November 22, 1963
Party: Democratic
Term: 1961–1963
Age when inaugurated: 43
2.) Lyndon B. Johnson
Born: August 27, 1908; near Stonewall, Texas
Died: January 22, 1973
Party: Democratic
Term: 1963–1969
Age when inaugurated: 55
Hope this helps