The following Sarah Alvord in my family tree married Woolcott Alvord, her maiden name was Dunham
https://ancestors.familysearch.org/en/9H3W-7SR/sarah-dunhan-1770-18...
The Life Summary of Sarah
When Sarah Dunhan was born on 9 June 1770, in Wilbraham, Hampden, Massachusetts, United States, her father, Isaac Dunham, was 27 and her mother, Sarah Spooner, was 24. She married Woolcott Alvord on 8 January 1794, in Ferrisburgh, Addison, Vermont, United States. They were the parents of at least 8 sons and 6 daughters. She died in July 1846, in Chateaugay, Chateaugay, Franklin, New York, United States, at the age of 76.