Students identify the historic value of personal letters by examining those Horatio Jackson's sent to his wife, Bertha, as well as ones they compose, and then write letters from Bertha to Horatio that reflect her day-to-day life. Dr. Horatio Nelson Jackson accepted a gentleman's bet in 1903 and drove from San Francisco to New York City in a Winton touring car. On the centennial of Jackson's achievement, Ken Burns and Florentine Films made a documentary film that follows his historic - and hilarious - journey. Horatio's Drive: America's First Road Trip is a one-episode, two-hour film.