Interference experiments with only one photon in the experiment at a time have also showed interference patterns. A previous paper that studied photon diffraction and interference (IntellectualArchive, Vol.1, No. 3, P. 20, ISSN 1929-4700, Toronto, July 2012.) required several photons in the experiment at the same time. The Scalar Theory of Everything (STOE) model of photon, plenum, screen and mask; the Bohm Interpretation of Quantum Mechanics; and the Transaction Interpretation of Quantum Mechanics are combined. The speed of the plenum wave is much faster than the speed of photons/light. The reverse wave required by the Transaction Interpretation is provided by a reflected plenum wave rather than a reverse time wave. The photon distribution on a screen results in an intensity pattern well fit by the Fraunhofer diffraction equation. The resultant mathematical model corresponds to the Fraunhofer mathematical model without the peculiar assumptions.