“Where does Christmas come before Thanksgiving?”/“In the dictionary.”

A Thanksgiving and Christmas riddle is:
 
Q: When/Where does Christmas come before Thanksgiving?
A: In the dictionary.
 
The riddle has been cited in print since at least 1995.
 
“Where does Christmas come before Easter?”/“In the dictionary” is a similar riddle.
 
     
17 May 1995, Detroit (MI) Free Press, “Yak Yuk,” pg. 2A, col. 3:
When does Christmas come before Thanksgiving? In a dictionary.
Steve Trotter, 10, Detroit
 
Google Groups: alt.humor.puns
PUNS OF THE WEAK 12-05-03 Part 1 In The News
Stan Kegel
12/6/03
(...)
Where does Christmas come before Thanksgiving?
In the dictionary (Devarrio, 12)
   
Google Books
Holiday Howlers:
Jokes for Punny Parties
By Connie Roop and Peter Roop
Minneapolis, MN: Carolrhoda Books, Inc.
2004
Pg. 21:
Q: Where does Christmas come before Thanksgiving?
A: In the dictionary.
 
Twitter
LOUIS K
‏@Lu_ken_K
When does da christmas come before thanksgiving?
in da dictionary
1:17 PM - 4 Jul 2009
 
Google Books
The Happy Classroom:
From Ha-Ha to A-Ha
By Janet Aaker Smith
Marion, IL: Pieces of Learning
2011
Pg. 87:
When does Christmas come before Thanksgiving?
In the dictionary
   
Google Books
Christmas Jokes and Riddles for Kids
By Christy Davis
Published by author
2013
Pg. ?:
Where does Christmas come before Thanksgiving?
*In the dictionary
 
Google Books
Ho-Ho-Ho Christmas Jokes to Tickle Your Funny Bone
By Amelia LaRoche
Berkeley Heights, NJ: Enslow Publishers, Inc.
2013
Pg. 20:
Where does Christmas come before Thanksgiving?
In the dictionary.