The Smithsonian Libraries is home to millions of items so the folks there spend a lot of time sorting and cataloging all sorts of things. One new online resource created by the Smithsonian Libraries and Archives is a new Genealogy Research Guide.
The guide is a simple list of online web sites that contain a lot of genealogy records online. While it may be "simple," it is also extensive. The list includes such web sites as:
I bet you haven't yet checked out ALL of these resources! This is a web site you should add to your list of bookmarks.
The Smithsonian Libraries and Archives' Genealogy Research Guide may be found at: https://library.si.edu/research/genealogy.