Here's a two part answer to your posting regarding the Barnards.
1. Many family legends and recorded oral histories include stories about brothers who came to America and went their separate ways. Family Tree Magazine actually described this type of oral history in a recent issue.
2. It has been recorded that Lieutenant Francis Barnard, who lived at 174 Duncaster Road, in Wintonbury, Connecticut, had seven sons who fought in the American Revolution.
"Participation in the Revolution
The Lexington Alarm was answered by nine men from Wintonbury, led by Captain Lemuel Roberts. All men were expected to serve in the Revolutionary War. Divided loyalties made it particularly difficult for he Anglicans. A Committee of Inspection was appointed in Windsor in December 1775...The approximate number of men who served from Wintonbury was 36. Surely no family exceeded the record of the Barnard family on Duncaster Road whose seven sons fought in the Revolutionary War!"
Wintonbury Historical Society, From Wintonbury to Bloomfield,(1983: Wintonbury Historical Society, Bloomfield, Connecticut), p. 47
The following page includes a photograph of Lieutenant Francis Barnard's house with the sign: "From this house went forth seven sons to fight in the American Revolution"
I hope this helps as you compile and research your Barnard family.