Book excerpt: The Circus Kings, first published in 1960 and authored by a nephew of the original Ringling Brothers, is a fascinating insider's account of circus life and lore. From humble beginnings in Baraboo, Wisconsin, the Ringling family would go on to create "The Greatest Show on Earth," delighting audiences across America. Along the way, however, were the behind-the-scenes financial struggles, tragedies such as fires and labor strikes, legal battles, and changing entertainment tastes. Henry Ringling North ran Ringling Bros. and Barnum & Bailey Circus from 1936 to 1967, along with his older brother, John. Included are 18 pages of photographs.