No, it's Knights of Columbus, a Catholic Fraternal Organization that created plenty of WWI huts for all U.S. servicemen to get free support from.
My guess is because it is not formally checklisted anywhere. I have had about 6 of the cards from this collection, because I collect Knights of Columbus items. I've been in the org for 20 years.
Edit: since you posted that they cannot locate information on it, it was likely given out at the KC huts for people to write home with. If you contact the KofC Museum in New Haven, CT, they may have more information about this postcard and a full checklist.
Oh, just saw this variation of the card with a different title and a different shield KC logo.
https://www.ebay.com/itm/26526090194...Bk9SR9DTvKyPZA
Here's a partial list of this grouping of postcards based on ebay current and sold listings.
Knights of Columbus World War I postcards:
A Striking Feature of K. of C. Halls (pool table)
Another Type of K. of C. Building
Dance Night at the K. of C. Building
"Fight Night" at the K. of C.
Governor Goodrich of Indiana Watches "Packey" McFarland Give Boxing Lessons at the K. of C. Building
Headquarters K. of C. Balboa Naval Training Station, Cal.
K. of C. Chaplain's Quarters
Keeping the Home Fires Burning at K. of C. Building
Knights of Columbus Secretaries Welcome New Arrivals in Camp
Representative K. of C. Secretaries
Typical K. of C. Building at Camp
When the Boys are Off Duty
When the Mail Comes in at K. of C. Building
Writing Home to Mother at K. of C. Building
With Cross in K of C shield logo:
At Home With the K. of C.
Devotion of the Boys at K. of C. Building
Fight Night at the K. of C.
Library Corner Knights of Columbus Building
"Packy" McFarland Instructing the Boys in the Manly Art at the K. of C.
Popular Songs at K. of C. Hall