- Pooley, Thomas R. (Thomas Rickett), 1841-1926, author1
- Poore, Charles T.1
- Prentice, W. P. (William Packer), 1834-1915, author1
- Prince, David, 1816-1889 author1
- Providence (R.I.). Board of Health, author.1
- Purple, Samuel S. (Samuel Smith), 1822-1900, author1