I think I read it in about 1963 or so. I tried to read as many of his books as I could find. All that come to mind now are Mila 18, Trinity and Exodus (which are probably all I read).
I wish I could remember more details about it. All I remember is the little kids going out through the sewer to find food and the heroine, Deborah.
Also by Uris - QB VII. It is a sequel of sorts to Exodus.
Another good read is "The Haj".