Sorry--I didn't send the Ayn Rand Society review with the first email. It's attached below.
Stewart got his doctorate in history from Oxford. James Hutson, the conservative reviewer, ignored that because he isn't an academic. He worked as a management consultant and now writes full time.
I agree that Stewart's thesis linking Locke and Spinoza is not mainstream, and may be stretching the connections way too far. However, Spinoza seems to have been the dirty little secret of many of the Enlightenment philosophers--most likely reading Spinoza while denying they'd ever even heard his name.  For what it's worth, I think the American elites like Jefferson, Adams and Washington most likely believed in a god but not in a god who regularly performed miracles and intervened in daily life. Whether that's Spinoza's pantheism I don't know.
It's also pretty clear that Stewart is at least as "spinoza-ist" as the founding fathers he was portraying in the book. It's easy to read your own biases into the motivations of historical figures. Still.the book does make you think so it was worth reading.
Sheila