Names
- Nimitz, Chester W. (Chester William), 1885-1966.1
- Nims, Richard, 1917-19941
- Nims, Richard, 1917-1994.1
- Norman, A. G.1
- O'Connor, T. J.1
- O'Higgins, Bernardo, 1778-1842.1
- Ohio (Ship)1
- Olson, William C.1
- Optical Society of America1
- Optical Society of America.1
- Oregon State University1
- Osborn, Chase S. (Chase Salmon), 1860-1
- Osborn, Chase S. (Chase Salmon), b. 18601
- Otero, Jose M1
- Owens, James S.1
- Paganelli, E.1
- Page, Thornton1
- Parker, J. W.1
- Parsons, Carey Evlya1
- Parsons, W. S.1