“What kind of shoes do bakers wear?”/“Loafers.”

A baker riddle is:
 
Q: What kind of shoes do bakers wear?
A: Loafers.
   
The “loafers” joke has been cited in print since at least 1984.
   
“What kind of shoes does bread wear?”/“Loafers” and “What kind of shoes does a plumber wear?”/“Clogs” are similar riddles.
       
       
26 April 1984, Shoal Lake (Manitoba) Star, pg. 9, col. 1:
What kind of shoes do bread bakers wear?
Loafers.
 
Google Groups: alt.teens.penpals
Bon Apetit!
merry mcgrath
7/19/00
1.  Why didn’t the turkey eat dinner?  Because he was stuffed already.
2.  What do cannibals eat off of?  Bone china. 
3.  What kind of shoes do bakers wear?  Loafers.
 
Google Books
Kids’ Nuttiest Jokes
By Mike Benny
New York, NY: Sterling Publishing Company, Inc.
2003
Pg. 82:
What kind of shoes do bakers wear?
Loafers.
   
Twitter
Ted Axelrod
@TedAxelRodPhoto
What kind of shoes do bread bakers wear?  Loafers of course.
6:55 AM - 1 Dec 2011
 
Twitter
Dom Williams
@domwilliams1994
What kind of shoes do bakers wear? Loafers. #ishouldbeacomedian
2:46 PM - 21 Mar 2013
 
Twitter
Ralph Nelson Willett
@NorthernOvation
Q: What kind of shoes do bakers wear?
A: Loafers.
(Everybody knows that.)
5:57 PM - 29 Apr 2018