Did you know that if your Great grandfather had bought $10,000 of every stock on the DJIA on the 1/1/1900 and the certificates had been handed down through the generations to you, your fortune would be worth precisely nothing. All those stocks, including the companies that took over some of those stocks went bankrupt over the years.
Not even close to being true. Wikipedia lists the initial 12 as:
General Electric
American Cotton Oil Company, a predecessor company to Bestfoods, now part of Unilever.
American Sugar Company, became Domino Sugar in 1900, now Domino Foods, Inc.
American Tobacco Company, broken up in a 1911 antitrust action.
Chicago Gas Company, bought by Peoples Gas Light in 1897, now an operating subsidiary of Integrys Energy Group.
Distilling & Cattle Feeding Company, now Millennium Chemicals, formerly a division of LyondellBasell, the latter of which is now in Chapter 11 bankruptcy.
Laclede Gas Company, still in operation as the Laclede Group, Inc., removed from the Dow Jones Industrial Average in 1899.
National Lead Company, now NL Industries, removed from the Dow Jones Industrial Average in 1916.
North American Company, an electric utility holding company, broken up by the U.S. Securities and Exchange Commission (SEC) in 1946.
Tennessee Coal, Iron and Railroad Company in Birmingham, Alabama, bought by U.S. Steel in 1907.
U.S. Leather Company, dissolved in 1952.
United States Rubber Company, changed its name to Uniroyal in 1961, merged with private B.F. Goodrich in 1986, bought by Michelin in 1990.
I'd say even with the ones that did go bankrupt your great-grandfather would've made truckloads overall. Eg. investments of $10,000 in 1900 (massive amounts then) in what would become parts of Unilever and Michelin would be extraordinary amounts today.