March 2007

Between July 24, 1929 and September 14, 1929 the following changes occurred:

July 24, 1929- Postum Incorporated name changed to General Foods
September 14, 1929- Curtiss-Wright replaced Wright Aeronautical.
Note – The stocks listed below are the components of the Dow Jones Industrial Average when the market crashed on October 29th, 1929.
Allied Chemical
American Can
American Smelting
American Sugar
American [...]

The present Dow Jones Industrial Average 30 began when the list was expanded to 30 from 20 and several substitutions were made. A divisor was introduced to adjust for the effect of stock splits, stock distributions, and stock substitutions. The divisor was 16.67.
Allied Chemical
American Can
American Smelting
American Sugar
American Tobacco B
Atlantic Refining
Bethlehem Steel
Chrysler
General Electric Company
General Motors [...]

Remington Typewriter and Mack Trucks, ex-stock dividend, replaces Kennecott and Mac Trucks stock dividend
Allied Chemical
American Can
American Car & Foundry
American Locomotive
American Smelting
American Sugar
American Telephone & Telegraph
American Tobacco
General Electric Company
General Motors Corporation
International Harvester
Mack Trucks (ex-stock dividend)
Paramount Famous Lasky
Remington Typewriter
Sears Roebuck & Company
Texas Company
U.S. Rubber
U.S. Steel
Western Union
Woolworth

Studebaker non-par and Woolworth $25 par replaced Studebaker and Republic Iron & Steel
American Can
American Car & Foundry
American Locomotive
American Smelting
American Sugar
American Telephone & Telegraph
American Tobacco
Anaconda Copper
Baldwin Locomotive
Du Pont
General Electric Company
Mack Trucks
Sears Roebuck & Company
Standard Oil of California
Studebaker
U.S. Rubber
U.S. Steel
Western Union
Westinghouse
Woolworth

American Tobacco, Du Pont, Mack Trucks and Sears, Roebuck replaced Corn Products, Central Leather, Goodrich and Texas Company
American Can
American Car & Foundry
American Locomotive
American Smelting
American Sugar
American Telephone & Telegraph
American Tobacco
Anaconda Copper
Baldwin Locomotive
Du Pont
General Electric Company
Mack Trucks
Republic Iron & Steel
Sears Roebuck & Company
Studebaker
U.S. Rubber
U.S. Steel
Utah Copper
Western Union
Westinghouse