100 years ago two sister set out to ride across America on motorcycles. They did it to show the US military that they were very capable motorcyclists after they were denied to be motorcycle messengers in WW1. Their names were Adeline and Augusta Van Buren. 100 years later the Sister Centennial Ride took 100 women across america following a similar route New York to San Francisco. This book is in celebration of those riders, the Van Buren sisters, and 100 years of women motorcycle adventurers.