In the course of doing research for Pip on artists featured in photographic anthologies, it seems there was a book by Time-Life called Photographing Children. There were many reprints which added and removed artists in an attempt to be more relevant and bring attention to newer artists.
I apologize for not noting which edition it was. I had intended to do a dedicated post but there really is not much on Johnny Alterman (1942–2012) online. But his collected works are housed at the Center for Creative Photography at the University of Arizona where one can see a list of archived photographs. His work did include nudes including some of his own daughter. The example in this post not only illustrates the legitimacy of the child nude but its very telling title demonstrates that it is possible to do so with dignity.
If I manage to find in which edition this photograph appears, I will share it. In the interest of full disclosure, I should state that I am not 100% sure of the title and am basing that on another edition housed in the PIgtails Archive which does not cover Alterman’s work.
[Thank you to those below who provided the correct information. -Ed]