I'm sorry there appears to be a weak link in this lineage, so this tree cannot be verified. James Lamb's "parents" were probably too old to have him. It doesn't mean he's not a Lamb, though, as children were often adopted by their relatives. But adoptions rarely came with paperwork back then. :-( Very disappointing.
I have now connected both my father and mother to the Mayflower. I knew I eventually would. HA This branch is more on the Lamb side than the Mann side. There are only a few Manns (immediate family) this connection relates to.
Through our Lamb branch, we can connect to many famous people. Through the well-documented and prolific Edmund Rice family, we can count as cousins Lucille Ball, Laura Ingalls, and Calvin Coolidge.
The Lamb trail to the Mayflower connects to prominent cousins such as Sarah Palin, Norman Rockwell, Richard Gere, Dan Quayle, Tennessee Williams, Brian Wilson (Beach Boys), Robert Treat Paine (Signer of the Declaration of Independence), and Avril Lavigne.
Our Mayflower ancestor was Stephen Hopkins, and his history is rich. Read his bio on the History Channel website here: http://www.history.com/news/history-lists/7-famous-mayflower-descendants
Family who wish to have more details, here is the chart starting with our first common ancestor and working backwards:
10 James Lamb Mann and sister Mabel Mann Hayden
9 Martha Elvira Lamb
8 James Lamb 1809-1871
7 Joshua Lamb 1748-1830 (Revolutionary Soldier)
6 Sarah Atwood 1729-1808
5 Eldad Atwood 1695
4 Anna Snow
3 Mark Snow 1628-1695
2 Constance Hopkins 1606-1677
1 Stephen Hopkins 1581-1644