Abolitionist John Brown's home in Pennsylvania was a station on what?

Brought to Australia thousands of years ago, which wild dog is now the continent's largest land predator? Brought to the U.S. in the 1930s, which school of psychology has a name that is German for "shape" or "form"? By what vote did the Supreme Court decide Brown v. Board of Education in May 1954? Which president told FEMA director Michael Brown in 2005, "Brownie, you're doing a heck of a job"? Brownsville, Oregon, stood in for Castle Rock in which 1986 film about four boys on a trek through the woods? Bruce Banner is the alter ego of which green Marvel hero? Bruce Catton began his Civil War studies in the 1950s with a trilogy about which Union army? Bruce Dern played Bette Davis's murdered young lover in which 1964 thriller?