Alvan S. Hallett son of Warren was born November 19, 1807 in Barnstable, MA and died November 7, 1887. Buried in Baptist Cemetery in Hyannis.
Alvan S. Jr is son of father's second wife, Lydia. He was born about 1853. No death info. Married Hattie S. Atwood.
There is a book on the Halletts by Cynthia Tryon Hoogs, 139 North Plain Rd. Great Barrington, MA 01230.
Excellent book. It covers from Andrew Hallett forward. I believe I paid thirty five dollars. I have the second edition published in June 1999. Cynthia has all the information and the sources. The book will take you back to Andrew.