Hundreds of thousands of Sanborn maps mapped the fire risk of every US city with over 1,000 people in the 20th century.

WASHINGTON, May 25-- The Library of Congress issued the following news: The Library of Congress has placed online nearly 25,000 Sanborn Fire Insurance Maps, which depict the structure and use of ...

In the mid-1800s, the fledgling U.S. insurance industry began commissioning mapmakers to produce specialized maps to assess fire risks in urban areas. Many of these historic fire insurance maps have ...

One problem that many family historians encounter is finding the actual house, store or building where an ancestor lived or worked. We find addresses on the census or in various directories, only to ...