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“Episode 50.” Mark Trail. Radio broadcast, May 24, 1950.“Episode 51.” Mark Trail. Radio broadcast, May 26, 1950.“Secret of the Sunken Log, The.” Mark Trail. Radio broadcast, May 29, 1950.“Episode 53.” Mark Trail. Radio broadcast, May 31, 1950.“Episode 54.” Mark Trail. Radio broadcast, June 2, 1950.“Episode 55.” Mark Trail. Radio broadcast, June 5, 1950.“Episode 56.” Mark Trail. Radio broadcast, June 7, 1950.“Episode 57.” Mark Trail. Radio broadcast, June 9, 1950.“Episode 58.” Mark Trail. Radio broadcast, June 12, 1950.“Episode 59.” Mark Trail. Radio broadcast, June 14, 1950.“Episode 60.” Mark Trail. Radio broadcast, June 16, 1950.“Episode 61.” Mark Trail. Radio broadcast, June 19, 1950.“Episode 62.” Mark Trail. Radio broadcast, June 21, 1950.“Episode 63.” Mark Trail. Radio broadcast, June 23, 1950.“Mystery of Malabar Island, The.” Mark Trail. Radio broadcast, June 26, 1950.“Wed Jun 28 1950.” Mark Trail. Radio broadcast, June 28, 1950.“Invaders of Lost Forest, The.” Mark Trail. Radio broadcast, June 30, 1950.“Episode 67.” Mark Trail. Radio broadcast, September 11, 1950.“Episode 68.” Mark Trail. Radio broadcast, September 13, 1950.“Episode 69.” Mark Trail. Radio broadcast, September 15, 1950.“Episode 70.” Mark Trail. Radio broadcast, September 18, 1950.“Apache and Devil.” Mark Trail. Radio broadcast, September 20, 1950.“The White Camel.” Mark Trail. Radio broadcast, September 22, 1950.“The Purse Strings Of Danger.” Mark Trail. Radio broadcast, September 25, 1950.“Episode 75.” Mark Trail. Radio broadcast, September 27, 1950.“Highway of Terror, The.” Mark Trail. Radio broadcast, October 2, 1950.“Episode 77.” Mark Trail. Radio broadcast, October 4, 1950.“Highway of Terror.” Mark Trail. Radio broadcast, October 6, 1950.“Monster Of The Gulf.” Mark Trail. Radio broadcast, October 9, 1950.“The Forty Year Freeze.” Mark Trail. Radio broadcast, October 11, 1950.“The Witch Of The Lost Forest.” Mark Trail. Radio broadcast, October 13, 1950.“Strange Invitation to Death.” Mark Trail. Radio broadcast, October 16, 1950.“Wings Of The Vampire.” Mark Trail. Radio broadcast, October 18, 1950.“Killers Of The Lost Forest.” Mark Trail. Radio broadcast, October 20, 1950.“The Sticks of Fear.” Mark Trail. Radio broadcast, October 23, 1950.“The Silver Sky.” Mark Trail. Radio broadcast, October 25, 1950.“The Avenging Arrow.” Mark Trail. Radio broadcast, October 27, 1950.“Episode 88.” Mark Trail. Radio broadcast, October 30, 1950.“Episode 89.” Mark Trail. Radio broadcast, November 1, 1950.“Salutes 'Outdoors Day' of Girl Scout Week.” Mark Trail. Radio broadcast, November 3, 1950.“Trouble at Danger Island.” Mark Trail. Radio broadcast, November 6, 1950.“Episode 92.” Mark Trail. Radio broadcast, November 8, 1950.“Episode 93.” Mark Trail. Radio broadcast, November 10, 1950.“Episode 94.” Mark Trail. Radio broadcast, November 13, 1950.“Episode 95.” Mark Trail. Radio broadcast, November 15, 1950.“Ship of Death, The.” Mark Trail. Radio broadcast, November 17, 1950.“Episode 97.” Mark Trail. Radio broadcast, November 20, 1950.“Poisoned Turkey. NOISY.” Mark Trail. Radio broadcast, November 22, 1950.“The Hawk of Diamonds. NOISY.” Mark Trail. Radio broadcast, November 24, 1950.“Episode 100.” Mark Trail. Radio broadcast, November 27, 1950.
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