The Silent Shore

"And you are certain of the year he was married in?" "Perfectly-there is no possibility of my being mistaken. He was married on New Year's Day, '58; I was born in May, '59." "It is strange, certainly. But there is one solution of it-is it not possible that, even if this is he, the lady registered as his wife might not have been so? In fact she could not have been, otherwise he could never have married your mother."