Joseph Jenckes, 1599 - 1683, is listed on the American Silversmiths website.
I am not related to this person, just passing on this information, which comes from a website called "American Silversmiths"
The link for the site is listed below where you can click on any name for more information.
Joyce
http://freepages.genealogy.rootsweb.com/~silversmiths/others...