Children's Books

I recently came across on oral history about children's book publishing at McGraw-Hill. Some other resources that could help that project, if it ever happens, include:

Marcus, Leonard (2008). Minders of make-believe. DBW Z480.C48M37 2008.
Eddy, Jacalyn (2006). Bookwomen: creating an empire in children's book publishing, 1919-1939. DBW Z480.C48E33 2006.