I am trying to confirm the last name of my 2nd great-grandmother Rebecca. She was born in New York about 1808 and died in 1884 in Boulder, Colorado. She married Alfred Beach, son of Richard Mansfield Beach and Lucinda Root, grandson of Timothy Beach and Abigail Bennett. I have seen both Henderson and Strong given as Rebecca's last name. I would like to establish her last name so I can find other information about her family. Enid Macken Santa Rosa, California