I have a copy of "A History of the Seymour Family" by George Dudley Seymour and Donald Lines Jacobus (1939) and am willing to do lookups. This book documents six complete generations of descendants from Richard Seymour (who came over to Connecticut in 1639). On one line (that of his son, John), it goes for several more generations.

If you have a Seymour line that goes back to New England in the 1700's (or possibly the first half of the 1800's), there's a good chance they're listed in this book.

I also maintain The Seymour Immigration Page on the web at:
http://www.aracnet.com/~jseymour/seymour.html