Last show of the series.
During a drunken, rambling, intoxicated statement after his arrest, Clyde Harris mentions he is "beating the drum for Carrie Nation." Carrie Nation was a real life female temperance (anti-alcohol) leader in America in the late 1800s and early 1900s, famous for destroying saloons with a hatchet. She lived in Guthrie, Oklahoma, from 1902-1906, the time period of this series.
Hec Ramsey asks Tom Bailey where he got his ideas for his glider. Tom says he read "Progress in Flying Machines" by Chanute, and "Bird Flight: Basis of the Flying Art" by Lilienthal. Octave Chanute and Otto Lilienthal were aviation pioneers in the late 19th century, prior to the first powered flight by the Wright Brothers in 1903.