Properties of graphene that make it an important material are its exceptionally high conductivity, massless fermions and a high velocity of electrons near the Dirac points. Composites of graphene and transition metal oxides (TMOs) are being investigated as possible supercapacitor storage materials, and graphene may also find use in spintronic devices because of its large electron spin diffusion length. In this proposal we investigate the local magnetism in graphene - magnetic TMO composites, the TMOs being nanoscale antiferromagnetic insulators, the surface of their nanostructures having a net magnetic moment. uSR will be used to probe these materials to look for magnetic coupling between the graphene and the TMO moments. Measurements will be made when at temperatures low enough to observe the impact of graphene on magnetic moment freezing in the TMOs and when applying magnetic fields.