Date of Death 29 Mar 1939 Los Angeles California tuberculosis The younger McGlynns stage and movie work began circa 1924 when he was twenty years of age His busiest western period was 1935 when he appeared in a pair of Hopalong Cassidy adventures as well as a pair with John Wayne He was known for HopaLong Cassidy 1935 Bar 20 Rides Again 1935 Lawless Range 1935 Westward Ho 1935 and The Dandy and the Belle 1931