“Where would you find a leprechaun baseball team?”/“In the Little League.”

A St. Patrick’s Day leprechaun riddle is:
 
Q: Where would you find a leprechaun baseball team?
A: In the Little League.

     
The joke has been cited in print since at least 2001.
     
   
Wikipedia: Little League Baseball
Little League Baseball and Softball (officially, Little League International) is a non-profit organization based in South Williamsport, Pennsylvania, United States, which organizes local youth baseball and softball leagues throughout the U.S. and the rest of the world.
 
Kidsjokes.co.uk (June 14, 2001)
St Patricks Day Jokes
Where would you find a leprechaun baseball team?
In the Little League!
 
Google Books
Let’s Celebrate St. Patrick’s Day
By Peter Roop and Connie Roop
Illustrated by Gwen Connelly
Minneapolis, MN: Lerner Publishing Group, Inc.
2003
Pg. ?:
Where would you find a leprechaun baseball team?
In the Little League!
 
Google Groups: alt.humor.puns
Kid’s Puns of the Weak 03-09-04
Stan Kegel
3/9/04
(...)
Where would you find a leprechaun baseball team?
In the Little League! (Tiger)
 
The Blue Mountain Internet Customer Newsletter
St. Patrick’s Day Funnies
by Katrina Moran
March 2005
Q: Where would you find a leprechaun baseball team? In the Little League.
   
Google Books
Ha-Ha Holiday Jokes to Tickle Your Funny Bone
By Felicia Lowenstein Niven
Berkeley Heights, NJ: Enslow Publishers, Inc.
2011
Pg. 13:
Where would you find a leprechaun baseball team?
In the Little League!
     
Twitter
Candace‏
@C_Joy
Where would you find a leprechaun baseball team?  The Little League
5:41 AM - 24 Feb 2011
 
Twitter
Rhonda Albom‏
@RhondaAlbom
Where would you find a leprechaun baseball team?
In the Little League!
5:55 AM - 17 Mar 2012
 
Twitter
Nathan Sawaya‏
@NathanSawaya
Where would you find a #leprechaun baseball team?...in the little league. Wishing you all a #HappyStPatricksDay!
5:16 PM - 17 Mar 2014
 
Twitter
King Quaego‏
@quaego_da_man
Q Where can you find a leprechaun baseball team
A The little leagues #ccjokes #pun
6:49 PM - 2 Mar 2016