- O'Brien, John73
- O'Brien, Frances1
- O'Brien, John1
- O'Brien, Katherine6
- O'Hare, Frank and Judy1
- Office of Dean of WVU College of Pharmacy, J. Lester Hayman1
- Office of Publication1
- Office of Publications5
- Office of Publications through Stanley Nels21
- Office of the President4
- Office of the Press1
- Official Magazine, Mountaineer Field, 1955/09/24; p.191
- Ohio County Court5
- Ohio County Public Library; Duffy, Sean10
- Ohio County Public Library; Duffy, Sean1
- Old Charles Town Library202
- Old National Bank of Martinsburg, 20
- Old National Bank, Martinsburg, W. Va.1
- Oldaker, Brad116
- Oliver, Mike & Art2
