Dow Jones of 1991 is pretty similar to now except internet companies and some rebrands like Minnesota Mining and Manufacturing to 3M.
en.m.wikipedia.org
Some of these companies have been around for over a century. They don't change all that often.
A lot of them are not around. they have been absorbed by other companies. General Motors is the only company that is truly around.
Allied Chemical and Dye Corporation
General Foods Corporation
Paramount Publix Corporation
American Can Company
General Motors Corporation
Radio Corporation of America
American Smelting & Refining Company
General Railway Signal Company
Sears Roebuck & Company
The American Sugar Refining Company
B.F. Goodrich Corporation
Standard Oil Co. of New Jersey
American Tobacco Company (B shares)
International Harvester Company
The Texas Company
Atlantic Refining Company
International Nickel Company, Ltd.
Texas Gulf Sulphur Company
Bethlehem Steel Corporation
Johns-Manville Corporation ↑
Union Carbide Corporation
Chrysler Corporation
Mack Trucks, Inc.
United States Steel Corporation
Curtiss-Wright Corporation
Nash Motors Company
Westinghouse Electric Corporation
General Electric Company
National Cash Register Company
F. W. Woolworth Company
Governments do not perish unless countries break up or societies collapse