Justices Related to Presidents:

Which Justices were related to Presidents? I can think of three (or two, depending on how you interpret the question), though there may well be others.

Well-attested answers only, please -- no hypothetical guesses. If you think, for instance, that Justice Kennedy is related to President Kennedy, or Justice Todd to President Lincoln's wife Mary Todd Lincoln, please point to specific evidence supporting this.

GMUSL 2L (mail):
John Marshall was Jefferson's cousin.
Taft was, well, himself.
10.24.2005 1:55pm
I believe that Justice Taft's father's son was president.

But it might have been his wife's husband.

And wasn't John Marshall related to Jefferson?
10.24.2005 1:58pm
Eugene Volokh (www):
GMUSL 2L and Elias are right on both counts -- Marshall was Jefferson's second cousin, and Taft was indeed himself. I know of one other Justice who was related to a President.
10.24.2005 2:01pm
Bushrod Washington!
10.24.2005 2:12pm
Eugene Volokh (www):
Igglephan is correct -- Bushrod Washington was George Washington's nephew. So those are the three I know about; are there others?
10.24.2005 2:16pm
GMUSL 2L (mail):
Bushrod? Oy, what a name!
10.24.2005 2:26pm
Neal R. (mail):
It may depend on what you mean by "related." Don't statistical analyses show that any two people of Earth can be no more distantly related than 60th cousin?
10.24.2005 2:26pm
OneEyedMan (mail) (www):
If Kerry's grandmother was a bridesmaid at Barbara Bush's wedding, one could only imagine that the American ruling classes is tighter than 60th cousin.
How could it be 60th cousins? That seems way to large.
Since for most of human history people either died or had big famlies, I would think it was more like 33 or so, which is the log in base two of the earth's population.
10.24.2005 2:58pm
Richard Bellamy (mail):
Which Justices were related to Presidents?

Supreme Court Justic Lucius Q. C. Lamar was the nephew of President Mirabeau Lamar.
10.24.2005 3:18pm
How could it be 60th cousins? That seems way to large

That's the maximum, though. Think about how long ago the common ancestor of, say, a Cherokee and a Nigerian must have lived.
10.24.2005 3:40pm
Rickersam (mail):
Does John Quincy Adams count, he was confirmed for the Court but was stuck in Russia and never sat on the court.
10.24.2005 3:53pm
byrd (mail):
If 1,000 years represents approximately 50 generations, and obviously certain populations were separated for far longer then that, then the "60th cousin" figure seems not impossibly high, but impossibly low. It sounds more like an average to me.

And I've never heard of President Lamar either. Is that a Blazing Saddles reference?
10.24.2005 4:21pm
byrd (mail):
Sorry, strike the "sounds like an average" part. Let the rest stand.
10.24.2005 4:26pm
Eugene Volokh (www):
Richard Bellamy: Great catch -- what a cool factoid! Plus this means that both of the Justices Lamar are related to a President.

Byrd: I had never heard of President Lamar, but that's why the good Lord created google.

Various people: Sure, everyone is related to everyone else in some sense. But that doesn't make for a fun answer to the problem.
10.24.2005 4:27pm
Syd Henderson (mail):
Mirabeau Lamar was president of the Republic of Texas.
10.24.2005 4:33pm
Richard Bellamy (mail):
I aspire to the "cool factoid."
10.24.2005 4:46pm
I got this from
Rutledge, John (1739-1800) — of South Carolina. President of South Carolina, 1776-78; Justice of U.S. Supreme Court, 1789-91; Chief Justice of U.S. Supreme Court, 1795.
10.24.2005 8:35pm
Paul Johnson (mail):
Thanks to the moderator for deleting my earlier non-responsive comment; perhaps I should have had my coffee *before* posting.

In return, I offer this additional factoid (although still non-responsive, it's fun): Roger B. Taney was Francis Scott Key's brother-in-law (married to Anne Phebe Charlton Key).
10.24.2005 8:47pm
lee (mail):
Don't you wish there was a Republic of Texas today!
10.24.2005 10:13pm