The Church of the Latter Day Saints have a geneological file and you can
trace things pretty easy on it. Also are not the Mayflower deascendants part
of the Daughters of the
American Revolution? If you live in Portland say hello to my son Pat.
In Washington I have used the Mormon database at the Library of Congress.
They say you can ask a local Latter Day Saint diocese as each of them has a
copy of the database. They are pretty easy to use.