User:Mrwojo/tips

American history

 * Chronicling America (Library of Congress), digitized newspapers 1836–1922
 * Seven Ways to Compute the Relative Value of a U.S. Dollar Amount - 1774 to Present

American places

 * Geographic Boundary Change Notes
 * 2010 Census of Population and Housing Publications
 * CPH-2. Population and Housing Unit Counts are especially useful when looking for what happened to CDPs that seem to have vanished.
 * GNIS Feature Search