Follow-up of the neutron star bearing gravitational-wave candidate events S190425z and S190426c with MMT and SOAR

G. Hosseinzadeh, P. S. Cowperthwaite, S. Gomez, V. A. Villar, M. Nicholl, R. Margutti, E. Berger, R. Chornock, K. Paterson, W. Fong, V. Savchenko, P. Short, K. D. Alexander, P. K. Blanchard, J. Braga, M. L. Calkins, R. Cartier, D. L. Coppejans, T. Eftekhari, T. LaskarC. Ly, L. Patton, I. Pelisoli, D. E. Reichart, G. Terreran, P. K. G. Williams