 After they were published in 1931, Guthrie's plays aired on the American networks.Around the same time, Guthrie himself also worked for the Canadian National Railway radio network, producing plays written by Merrill Denison that used similar techniques.A 1940 article in "Variety" credited a 1932 NBC play, "Drink Deep" by Don Johnson, as the first stream-of-consciousness play written for American radio.