- O'Neill, Lesley A1
- O'Roark, Elizabeth1
- O'Sullivan, Ruari J.1
- Olds, Daniel J1
- Oliver, Michael1
- Olson, Abigail1
- Ortega, Lara1
- Otts, J. M. P. (John Martin Philip), 1837-19011
- O’Donnell, Anna1
- Padgett, Melissa S.1
- Palmer, Marjorie1
- Parker, Kevin1
- Parnass, Caroline T.1
- Paschal, Danielle N.1
- Paschall, Evita A1
- Patel, Shilpa1
- Patel, Shivani1
- Patterson, Michael Bradford1
- Patton, Gage1
- Patton, Hannah1
