Jackson was a terrible president.  He mistreated both Native Americans and African Americans and was extremely corrupt.  "Indians" aka Native Americans have been honored on currency in the past.  African Americans never have been on currency despite having fought and died for this country like everyone else, and Harriet Tubman's story is inspirational on many levels.   She risked her life for the greater good of this country and was a war hero.   She deserves this honor.