Sandburg had approached Alfred Harcourt in 1922 wanting to write a children's book on Lincoln, and Harcourt gave his approval. After a while, however, Sandburg realized that the book would be much bigger than he anticipated and not a children's book.
In 1928, Harcourt took the first 27 chapters of The Prairie Years, did some editing, and turned that into Abe Lincoln Grows Up, which was, indeed, a children's book.
Best
Rob
Abraham Lincoln is the only man, dead or alive, with whom I could have spent five years without one hour of boredom.
--Ida M. Tarbell
I want the respect of intelligent men, but I will choose for myself the intelligent.