Interesting Lecture From A Biblical Unitarian:

Many "key Founders" and the philosophers and divines who influenced them were theological unitarians. They were also devout theists who believed, in some way, revelation (God speaking to man in holy texts). One interesting dynamic I've found is mentioning they were "unitarians" automatically, reflexively connotes today's Unitarian-Universalist Church who aren't quite the same as those classical, Founding era unitarians.

Perhaps this fellow is more in line with those unitarians: