" I think of thinkers like Edison, Tesla, Einstein, Alfred North Whitehead, Anthony Flew and scores of other scientists."

I don't know what you mean by "process thinker." However, I recommend the book "Enigmas of Chance" (by Kac) to you. He refers to Einstein and Kurt GÖdel as fundamentalists, because they were examining the fundamentals. While he did not mention Tesla, I (having read a bit about Tesla in previous years) consider Tesla to be much like that.

These kinds of fundamentalist thinkers might include also Newton, Archimedes, Hooke, Galileo and many others. If such a way of thinking applies to philosophers, perhaps John Dewey would be among their number.