I'll be looking forward to reading the Flandreau information you have.Hope that you let us know when you have something posted on the Net.
My Great, Great Grandfather, David Flandreau (1830-1862) is my genealogy nut to crack.He lived in New York City before the Civil War. He was a carpenter by trade. He married in 1851 to Emma Jane Bertholf (1835-1914). The wedding took place in Greenwich Village area of the City in a Church on Jane Street. (The Church is not there today.) David and Emma Jane had 6 children--5 girls and a boy--before he died from a wound that he received at the Second Battle of Bull Run (1862).Now, with all this information that is on records stored in the National Archives, you would think that his parents names would be mentioned somewhere. That is not the case. I can't find their names anywhere on David's records.
I'm hoping that you'll have something for me to work on when your information is posted. David Flandreau is buried in a military cemetry in Philadelphia, PA, so you won't find him in the old Flandreau cemetry in NY. His wife remarried after the Civil War; had 7 more children; and moved to Northern New Jersey in the 1870s. The second husband, Richard Vreeland, took over the upbringing of the Flandreau children, who were very young when their father died, so little has been pasted down in the family about the Flandreau history.