As somebody once said: "History is a battlefield." Below are two videos, one of a leftist, one of a rightist, which deal with this issue.
Michael Parenti is a socialist and writes from that perspective. In this video he gets a bit screechy at moments, but as usual his presentation is quite good.
I think it's fair to describe Norman Dodd as a typical American conservative. As he describes, he was surprised by what the Reece Commission discovered about the Rockefellers and their efforts to control American education.
His interviewer is G. Edward Griffin, and he's a bit scary. He was a speech writer for George Wallace (racist governor of Alabama and presidential candidate), and a member of the John Birch Society. This is more than enough to give me pause, but I fact-checked everything I could that is presented in this video and was satisfied by what I found. I invite you to do the same.
These videos are worth the time invested. They may change the way you perceive the world.