Agree. For the drama of it, I'd move the end-date up to 1969, just to catch the moon landing.

My great-grandfather learned to care for horses, and drive a wagon / buggy, and keenly remembered the first time he saw an automobile. He qualified as a doctor before antibiotics were invented, and then lived long enough to at least exist in a house with a personal computer - whether he ever used it is something I never thought to ask my grandfather!