Historic Sites of Mendham Some of the more recognizable features of the area are its historical buildings and lands. Many buildings from the Revolutionary War period are used as homes, businesses, and historically preserved attractions. For more information, The Mendham Borough Historical Society meets the fourth Tuesday of each month at the Phoenix House, 2 West Main St., Mendham, NJ - at 7:30 PM. Brookside Post Office Brookside Post Office, originally called Waterville, was established in 1859. The building remains similar today as it was then. In 1906, the town installed a fire alarm rail to call volunteers to local emergencies. It is now displayed in the front of Mendham Borough Fire Department. The Ralston General Store Built in 1776, the Ralston General Store is the oldest post office in the country. It now serves as a museum housing a collection of 18th century memorabilia. The store is open to the public from June through October on Sundays and holidays from 2:00 PM to 5:00 PM. For further information, call Marjorie Davidson at 543-4347 Hilltop Church Built in 1832, Hilltop Presbyterian Church was the first church in Mendham. During the war of independence it served as a hospital for soldiers who developed smallpox. Twelve of these soldiers are buried in the church graveyard The Black Horse Inn Served as a rest stop for travelers as early as 1742. Today it is a restaurant. The Phoenix House Built in 1801. It is listed in the Library of Congress as an historical landmark. Today it is used as a municipal building. The Mendhams info@mendham.org © 2010 The Mendhams All rights reserved.