Entry in progress—B.P.
 
Wikipedia: Buffalo, New York
Buffalo /ˈbʌfəloʊ/ is the second most populous city in the state of New York, after New York City. Located in Western New York on the eastern shores of Lake Erie and at the head of the Niagara River across from Fort Erie, Ontario, Canada, Buffalo is the seat of Erie County and the principal city of the Buffalo-Niagara Falls metropolitan area, the largest in Upstate New York. Buffalo itself has a population of 261,310 (2010 Census) and the Buffalo–Niagara–Cattaraugus Combined Statistical Area is home to 1,215,826 residents.
 
17 March 1940, Greensboro (NC) Daily News, “The Week in Religion,” pg. 2-D, col. 7:
In Buffalo last week, to name one such community, the Men’s club of Westminster Presbyterian church advocated an extensive use of Buffalo’s nickname—the City of Good Neighbors.
 
5 May 1940, Springfield (MA) Sunday Union and Republican, pg. 14A, col. 8 ad:
An illustrated booklet about Buffalo, along with a signed Courtesy Card will assure your good time in the “City of Good Neighbors”...Write to Board of Publicity, Office 33, City Hall, Buffalo, N. Y.
Come to BUFFALO this year!
 
OCLC WorldCat record
Buffalo, city of good neighbors
Author: Marine Dembrow; State University College at Buffalo. Center for Urban and Rural Education.; State University College at Buffalo. Professional Development Schools Consortium.
Publisher: Topeka, KS : Nationwide Learning, Inc., 2009.
Edition/Format:   Book : English
     
Buffalo (NY) News
16 August 2009, Buffalo (NY) News, “Who are we?: Queen City, Flour City, Nickel City ... what’s with all the nicknames for Buffalo?” by Anne Neville, pg. F1:
*“The City of Good Neighbors.” This one is easy to nail down. Buffalo became the City of Good Neighbors on Jan. 23, 1940, when Mayor Thomas L. Holling introduced a resolution making the phrase the official municipal slogan and ordered “that said slogan be imprinted, if practicable, on all city stationery hereafter to be printed.” The resolution passed, but only by a vote of nine to six, even though Holling promised to submit his next budget a month early and gave the council’s Republican majority “a box of cigars as a token of good will,” according to that day’s Buffalo Evening News.
   
OCLC WorldCat record
The Buffalo blizzard book : the snowy saga of the “city of good neighbors” ; as reported in its newspapers, 1811-2011
Author: Paul K Moore
Publisher: [Buffalo, N.Y.? : s.n.] ; Auburn Hills, MI : Printed by Data Reproductions, ©2011.
Edition/Format:   Book : English