CAPITALIZING PROPER NOUNS RULE EXAMPLE 1. Capitalize the names of people and pets. Pedro Garcia, Ms. Adams, Fido, the Franklins, Americans 2. Capitalize every important word in the names of particular places and things. New England, Madison Avenue, Museum of Modern Art, Texas, Holland Tunnel 3. Capitalize the names of months, days, and holidays. January, May, Thursday, Fourth of July