I had the privilege of meeting father and son at Harleyfest a few years ago. The son recreated his father's ride from east to west coast back in the 1930s. The panorama of the road then, the small towns, the lack of service stations along the way in the 30's and the son's reflections are great reading. It was a challenging ride (I think the father had about $20 in his pocket for the whole trip) then and a reflective one the second time around.
Safe riding friends and happy reading!