John Craig, a Scottish
mathematician, studied mathematics under David Gregory at Edinburgh.
Later he moved
to Cambridge where he remained for most of his life. He was ordained
and
became prebendary of Salisbury in 1708. Most of his contributions to
mathematics are in the infinitesimal calculus. He is known for one
short work, Theologiae Christianae
Principia
Mathematica, published in 1699. This concerns the
probability of the truth of events based upon testimony of these
events. The journal History and Theory
has printed as Craig's Rules of
Historical Evidence the text and translation of the first
two chapters of the work in Beiheft 4, 1964.
George Hooper was a well-respected member of the clergy in England. All
of his writings were published anonymously. Attributed to him is 
