Let's Pretend was created and directed by Nila Mack (1891-1953). Its origins date back to Aunt Jymmie and Her Tots in Tottyville beginning October 27, 1928, later followed by The Children's Club Hour with Howard Merrill and then The Adventures of Helen and Mary, scripted by Yolanda Langworthy. Between December 1930 and January 1931, the title briefly changed from The Adventures of Helen and Mary to Land O' Make Believe. With Estelle Levy, Patricia Ryan, and Alwyn Cuesta in the title roles, the fairy tale program continued until March 17, 1934.
After 229 broadcasts, Nila Mack took over as director and changed the title to Let's Pretend, "radio's outstanding children's theater." Mack's Peabody Award-winning Let's Pretend began March 24, 1934, running for two decades before the final show on October 23, 1954.
The show always began with a characteristic tune, sometimes with lyrics, from its long-time sponsor Cream of Wheat. George Bryan and Jackson Wheeler were the announcers. Jean Hight became the program's director after Nila Mack's death in 1953.
The series received numerous awards, including two Peabody Awards, a Women's National Radio Committee Award and five Radio Daily Awards. In 1970 Telegeneral adapted these stories on vinyl records.