Names
- O'Connor, Jessie Lloyd, 1904-1
- Ohio Council on Alcohol Problems.1
- Olmstead, Mildred Scott1
- Olmsted, Mildred Scott, 1890-1990.1
- Overholt, Gerald.1
- Paul, Alice, 1885-1977.1
- Pauling, Linus, 1901-1
- Pauling, Linus, 1901-1994.1
- People's Council of America.1
- Percy Jones Hospital (Battle Creek, Mich.)1
- Prettyman House (Ann Arbor, Mich.)1
- Prohibition National Committee (U.S.)1
- Prohibition National Convention (1912 : Atlantic City, N.J.)1
- Prohibition National Convention (1916 : Saint Paul, Minn.)1
- Prohibition National Convention (1920 : Lincoln, Neb.)1
- Prohibition National Convention (1924 : Columbus, Ohio)1
- Prohibition National Convention (1928 : Chicago, Ill.)1
- Prohibition National Convention (1947 : Winona Lake, Ind.)1
- Prohibition National Convention (1951 : Indianapolis, Ind.)1
- Prohibition National Convention (1955 : Milford)1