Search our earliest editions of the New Brunswick City Directory:

The Internet Archive included the New Brunswick Free Public Library in an application for a National Historical Publications & Records Commission Grant through the National Archives. The grant was awarded and allowed us to digitize our 4 oldest editions of the City Directory of New Brunswick (spanning from 1855 to 1871), which were previously not available anywhere electronically.

Ancestry.com offers digitized copies starting in 1872, but the collection cannot be found by a title search, meaning you will have to browse through all directories in their collections to find New Brunswick.