Ho does johnny find out the truth about his prentage?

He discovers some papers that will be useful to Sam Adams, as well as a family Bible. In the Bible, he finds a listing on the family tree for a woman who could be his mother. This Lavinia Lyte (most women in the Lyte family are named Lavinia) married a French doctor, and both of them are scratched out of the family tree. Johnny takes the page with him, but then decides that it no longer matters whether he is related to the Lytes.