1838. Ensign, T., active 1838-1840, publisher, Hammond, John T., approximately 1820-, and Phelps, Humphrey,active 19th century,publisher. Counties shown in colors. Prime meridian : [Washington]. 'Entered according to act of Congress in the year 1836 by Humphrey Phelps & Bela S. Squire... Humphrey Phelps & T. Ensign,.