Gamma-ray spectra were obtained at θy = 125 deg for reactions involving neutron interactions with a sample of natural calcium. Cross sections for the production of gamma rays have been deduced from these spectra as a function of both neutron and photon energy. The data were obtained using a Nal spectrometer system and the Oak Ridge Electron Linear Accelerator as the neutron source. The experimental results have been compared with predictions based on the gamma-ray files of the current Defense Nuclear Agency evaluation for calcium (Mat 4152 Mod 3) and with previous experimental data. Although there is generally good (15%) agreement, important differences are discussed.