I am working on my line from Robert Adams to daughter Mary Adams to her daughter Hannah Goodrich. Then I need help for Hannah. I thought she married Natanial Pettingill and had a son Nathanial. however, I cannot find birth of second Nathaniel. But i sidetrack. When I found Adams in my tree, I thought it would be fun to see if John Adams is a cousin.. SO really two things. How do I find my generation of Nathaniel Pettingill, died 1783, but cannot find birth and how would I find a common ancestor to Pres. John Adams? Thank you