I was also surprised to not see any familiar names from the superrich industrialists in 19th and early 20th century America. Where are the Vanderbilts and Carna

I was also surprised to not see any familiar names from the superrich industrialists in 19th and early 20th century America. Where are the Vanderbilts and Carnagies? I know the industrialists donated hugely to charity and public works, but I'd expect wealth to remain.