Eu2+ d0- transition metal perovskites are of interest as potential multiferroics when undoped, or as CMR materials. EuWO1+xN2-x is a new magnetoresistive material and exists over a broad range of x = -0.2 to 0.5. It has a ferromagnetic ordering transition at TC = 12 K. Neutron diffraction is needed to determine the I112/m monoclinic superstructure evidenced by TEM that arises from O/N ordering and octahedral tilting, and the magnetic order. This may include a coexistence of antiferromagnetic/ ferromagnetic orders (as found in a previous GEM study of the analogueEuNbO2N). 2 days on GEM are needed to study 2 samples with different x values (one stoichiometric x =0, the other highly doped x = 0.5) because of high absorption by Eu.