Sources:

F.W. Woolworth Company Annual Reports
McCrory Stores Company Annual Reports
McCrory Corporation Annual Reports
Kresge Company Annual Reports
Kmart Corporation Annual Reports
G.C. Murphu Company Annual Reports
J.J. Newberry Company Annual Reports
S.H. Kress & Company Annual Reports
Genesco, Incorporated Annual Reports
Neisner Brothers, Incorporated Annual Reports
V.J. Elmore Stores, Incorporated Annual Reports
W.T. Grant Company Annual Reports
Google News Archive
New York State Historic Newspapers
California Digital Newspaper Collection
Colorado Historic Newspaper Collection
Chronicling America - Historic American Newspapers / Library of Congress
The Boston Public Library
The Oklahoman
http://thewoolworthbuilding.com
http://www.gcmurphy.com
http://www.fundinguniverse.com
http://www.dollargeneral.com
https://aboutus.dollargeneral.com
http://www.familydollar.com
Various articles on Wikipedia


FAIR USE OF VARIETY AND DOLLAR STORE IMAGES:

The graphics from the Tacoma Public Library, Laguna Historical Society, Dollar General Stores and Family Dollar Stores help illustrate key moments in retail industry history that are described in the article. The images are not replaceable with free-use or public-domain images. The use of the images does not limit the copyright owners' rights to distribute the images in any way. The images are being used for non-profit, informational purposes only and their use is not believed to detract from the original images in any way.