Marjorie Flack is the author of Angus and Wag-Tail Bess. Told and Pictured by M. Flack (1935), Up in the Air (1935), Humphrey. One Hundred Years Along the Wayside with a Box Turtle. Story and Pictures by M. Flack (1934), Tim Tadpole and the Great Bullfrog (1934), Tim Tadpole and the Great (1934).