Pat Frank 
Mr. Adam [EPUB ebook] 

After a nuclear power plant in Mississippi explodes, it was soon realized that a previously unknown form of radiation was released. The radiation caused all men on Earth to become sterile, even boys who were still inside the mother's womb. However, ten months after the explosion in Mississippi, a doctor delivers a perfectly healthy baby girl. It's soon discovered that the child's father, who has the surname Adam was more than a mile under the surface of Earth inside an old silver and lead mine during the explosion. It would appear that Mr. Adam is humanity's only hope to stave off extinction!