Christmas Cards as Family History Clues

Published by J. Hoover, Philadelphia [Public domain],
 via Wikimedia Commons

Do you have a box of old Christmas cards? Letters and Christmas cards can help you learn more about your family.  Do you recognize the handwriting?  Is it signed?  Is the address familiar? 

If the card is undated but includes a stamp, you can calculate an approximate date by determining the historical cost of postage.  Learn more about historical postage rates and mailing practices at the United States Postal Service page Our History: About Stamps and Postcards.