The 1930s and 1940s brought Terry's most popular and successful characters, Gandy Goose beginning in 1938, Mighty Mouse beginning in 1942, and Heckle and Jeckle, developed by combining what was originally a husband-and-wife pair of mischievous magpies from the 1946 Farmer Al Falfa cartoon "The Talking Magpies" with Terry's notion that twin brothers or look-alikes had comic possibilities. Other characters include Dinky Duck in 1939, Dimwit the Dog (originally paired with Heckle and Jeckle), Sourpuss (usually paired with Gandy Goose) and among others. Terrytoons was also nominated four times for the Academy Award for Animated Short Film: "All Out for V" in 1942, "My Boy, Johnny" in 1944, Mighty Mouse in Gypsy Life in 1945, and "Sidney's Family Tree" in 1958.