I am looking for the full date of death of Frances Augusta Westervelt and the date of death of her husband Henry Elmer Westervelt. They are the grandparents of a friend of mine. All of her grandparents had died before she was born and we have recently discovered Frances was the Curator for Bergen County for many years and wrote/co-wrote a number of historical books for Bergen County, one being .
History of Bergen County, New Jersey, 1630-1923
by Westervelt, Frances A. (Frances Augusta), 1858-1942.
We live in Durham, NC. Thank you!