My parents were born in 1929 and 1932 and neither was ever a Republican. They lived through the war and like other American children, they contributed to the war effort. The fact that they attained adulthood during the Truman and Eisenhower years didn't override their childhood. Are you sure the heavily Republican cohort goes back as far as you're saying? Someone born in 1932 knew no president except for FDR until they were about 12.