| Miscellaneous References and MentionsWhile our initial information about Union Bridge came from various goverment sources (GNIS, US Census, FIPS), we also found mention of Union Bridge in various books, maps and other sources. We've created the following list to keep track of the sources that proved useful in adding to our knowledge about Union Bridge. We hope that they will be useful to you. Note: Initially, we were careless about keeping track of where our Union Bridge data came from. The following list of references and mentions is incomplete. Business Atlas and Shippers' Guide (1895)
 A note taken from the Shipper's Guide for Union Bridge: North American Railroad Atlas - Northeast
 Table of U.S. Post Offices in the United States (Jan. 1851)
 Maryland: Official Transportation Map (2003)
 Rand McNally Map of Maryland (1911)
 Shell Oil Road Map for Maryland (1956)
 We found Union Bridge in these Censuses: 2010-1990. See our Census Page for Union Bridge for more information. Both the GNIS and FIPS databases contain entries for Union Bridge. See our Misc Page for Union Bridge for more information. | 
