With Presidents' Day in the U.S. this week, this is a good time to look at the ancestry of the U.S. presidents. After all, if your ancestors have been in the U.S. for 100 years or more, there is a strong possibility that your ancestry intersects with at least one of the U.S. presidents. The same can be said for many others of Canadian, British, Scottish, or Irish ancestry, as well as a few from the European continent. 

You can find many sources of information about U.S. presidential genealogy. Probably the most scholarly resource is Gary Boyd Roberts' book, Royal Descents of 600 Immigrants to the American Colonies or the United States. 

The Web is full of information about U.S. presidential ancestry, but with varying degrees of accuracy. Here is a list of some of those pages:

Presidential Genealogy and Family History:

http://www.presidentsusa.net/genealogy.html 

Ancestry of George W. Bush:

http://homepages.rootsweb.com/~addams/presidential/bush.html

Ancestry of George Washington:

https://www.archives.com/genealogy/president-washington.html

Ancestry of Abraham Lincoln:

https://en.wikipedia.org/wiki/Lincoln_family

Ancestry of John F. Kennedy:

https://famouskin.com/ahnentafel.php?name=8108+john+f+kennedy

Ancestry of Richard Nixon:

https://famouskin.com/ahnentafel.php?name=3502+richard+nixon

Ancestry of Lyndon B. Johnson:

https://famouskin.com/ahnentafel.php?name=15671+lyndon+b+johnson

Ancestry of Gerald Ford:

https://famouskin.com/ahnentafel.php?name=8007+gerald+ford

Ancestry of Jimmy Carter:

https://famouskin.com/ahnentafel.php?name=12937+jimmy+carter

Ancestry of Ronald Reagan:

https://famouskin.com/ahnentafel.php?name=15704+ronald+reagan

Ancestry of George H. W. Bush:

https://famouskin.com/ahnentafel.php?name=3103+george+w+bush

Ancestry of Bill Clinton:

https://famouskin.com/ahnentafel.php?name=15616+bill+clinton

Ancestry of George W. Bush:

https://famouskin.com/ahnentafel.php?name=3103+george+w+bush

Ancestry of Barack Obama;

https://www.thoughtco.com/ancestry-of-barack-obama-1421628