Marjorie Flack is the author of The Story about Ping. By M. Flack and K. Wiese (1935), Angus and Wag-tail-Bess (1935), Topsy. Told and Pictured by M. Flack (1935), Christopher. Told and Pictured by M. Flack (1935), Angus and Wag-Tail Bess. Told and Pictured by M. Flack (1935).