“Everyone brings joy to this office. Some when they enter, others when they leave”

“Everyone brings happiness/joy to this office. Some when they enter, others when they leave” is a work saying that has been printed on many images. The origin appears to be this, from the Pittsburgh (PA) Post-Gazette on January 14, 1957 (and reprinted in many other newspapers):
 
“EDWARD P. LYNCH, secretary of the ‘Let’s Have Better Mottoes’ Association, announces that ‘happiness’ is the theme for 1957. So, he reports, the monthly presidency of the association has been handed to C. A. McDonald for submitting this one: ‘Everyone Here Brings Happiness—some by coming in, others by leaving.’”
 
“Everyone brings joy to this office. Some when they enter ... and others when they leave” has been cited in print since at least 1988.
     
     
14 January 1957, Pittsburgh (PA) Post-Gazette, “Pittsburghesque” by Charles F. Danver, Daily Magazine, pg. 1, col. 1:
Theme for ‘57
EDWARD P. LYNCH, secretary of the “Let’s Have Better Mottoes” Association, announces that “happiness” is the theme for 1957. So, he reports, the monthly presidency of the association has been handed to C. A. McDonald for submitting this one: “Everyone Here Brings Happiness—some by coming in, others by leaving.”
 
4 February 1957, San Francisco (CA) Chronicle, “Talk Around Town” by David Hulburd, pg. 32, col. 1:
IN CASE YOU CARE…The Board of Governors of the Let’s Have Better Mottoes Association has awarded the presidency to C. A. McDonald for this motto: “Everyone here brings happiness—some by coming in, others by leaving.”
 
4 September 1960, Pittsburgh (PA) Press, “Gilbert Love’s Notebook,” sec. 3, pg. 1, col. 7:
“Everybody Here Brings Happiness,” says a placard in a local tavern. “Some By Coming In; Others By Leaving,” it adds.
 
11 April 1967, Lebanon (PA) Daily News, “At Teen Challenge Center” by Mike Puddington, pg. 11, cols. 3-4:
The sign in Rev. Reynold’s office simply says “Everybody here brings happiness, some when they enter, others when they leave.”
 
3 March 1988, The Register (Santa Ana, CA), “Hottest new bistro in OC isn’t any such thing” by John Hall, pg, B2:
WALLFLOWERS: Sign on the box-office door at the Southampton: “Everyone brings joy to this office. Some when they enter ... and others when they leave.”
 
18 September 1988, Wisconsin State Journal (Madison, WI), ‘Madison on the Rocks” by Kris Kodrich, pg. 1G, col. 1:
As the sign near the door reads, “Everyone brings happiness here—some when they enter, others when they leave.”
(Echo Tavern.—ed.)
     
4 November 1990, Bellingham (WA) Herald, pg. E13, col. 6 ad:
“Every person can bring joy to our lives; Some when they enter, others when they leave.”
(K Realtors.—ed.)
 
1 March 1993, Boston (MA) Globe, “Flattened desk, pancaked floor: View of a crater” by Tom Mashberg, pg. 8:
On the door outside the darkened office, visible by flashlight, was a sign that read: “Everyone brings joy to this office. Some when they enter. Others when they leave.”
   
Google Books
Quit Your Job, Enjoy Your Work:
Making Your Workplace More Enjoyable

By Garth S. Johns  
Bloomington, IN: iUniverse
2012
Pg. 81:
Everybody brings happiness into this office; some when they enter; others when they leave.
 
Reddit—Jokes
Everyone brings joy to this house. Some when they enter, and others when they leave.
submitted November 6, 2017 by Face-in-the_Crowd
A sign I saw at my parents friends’ place.
COMMENTS
Karpukoly
Applicable to politicians and government
 
Twitter
Rashmi Bajaj
@rashbajaj
Note at workplace;
“Everyone brings joy to this office;
Some when they enter.. others when they leave” 😜
11:47 AM - 27 Feb 2018