Creator
- New-York Union Envelope Depot2
- Northrop, Henry Davenport, 1836-1909.2
- Northup, Solomon, 1808-1863?2
- O'Keefe, D. C.2
- Oldham, Williamson Simpson, 1813-1868.2
- Owen, R.2
- Paine, Robert, 1799-18822
- Parkhurst, Charles H. (Charles Henry), 1831-1889.2
- Pasour, E. G.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
- Pierce, George F. (George Foster), 1811-1884.2
- Platen, Charles G.[?]2
- Pollard, Edward Alfred, 1831-1872.2
- Putnam, George Palmer, 1814-1872.2