[en] We have measured the charged particle multiplicities of events containing a large transverse momentum (p/sub T/) photon produced near center-of-mass polar angles (theta) of 90⁰, 17.5⁰ and 8⁰ in proton-proton collisions. The data were obtained at the CERN, Intersecting Storage Rings (ISR) at c.m. energies of 23, 31, 45, 53, and 62 GeV and for the transverse momentum range 0 less than or equal to p/sub T/ less than or equal to 4.5 GeV/c. When the photons are detected near theta = 90⁰, the associated multiplicity in the hemisphere away from the observed photon is found to increase with increasing photon transverse momentum. In the hemisphere containing the photon, the associated multiplicity decreases at the lowest energy and is approximately constant at the highest energies. The data at theta = 17.5⁰ and 8⁰ are similar with the exception that the particle multiplicities near the detected photon are found to decrease with increasing photon p/sub T/ at all energies. No strong back-to-back structure is observed in the data; however, some shift in the multiplicity distributions opposite the photon is observed. The data at all three polar angles show a broad peak in the azimuthal (phi) angular distributions 180⁰ opposite the detected photon. Finally, the data are compared to a simplified picture for particle production in large p/sub T/ events and to the various classes of high p/sub T/ models that have been proposed