Creator
- Oldham, Williamson Simpson, 1813-1868.2
- Olmstead, Charles H.2
- Ovington, Mary White, 1865-1951.2
- Parkhurst, Charles H. (Charles Henry), 1831-1889.2
- Patrick, Kelly2
- Peck, George B., Jr. (George Bacheler), 1843-1934.2
- Pendleton's Lithography.2
- Pendleton, R. L.2
- Pettis, George H.2
- Philips, F. C. (Francis Charles), 1849-1921.2
- Phillips, William2
- Pickens, William, 1881-1954.2
- Pierce, George F. (George Foster), 1811-1884.2
- Pollard, Edward Alfred, 1831-1872.2
- Putnam, George Palmer, 1814-1872.2
- Rabb, Hezekiah2
- Ramabai Sarasvati, 1858-1922.2
- Rankin, Jeremiah Eames, 1828-1904.2
- Reade, Charles, 1814-1884.2
- Rhegius, Urbanus, 1489-1541, author.2