Bill, What a great idea you have for cross referencing last names and DC addresses. I have been wondering for quite a while if this was possible. If only these city directories were online and we could plug in an address for a certain year and learn who all was living there. I have obtained microfilm from the LDS over the past years for various DC directories and have written down addresses of various names that I was looking. In one instance I found my gggrandfather in Georgetown living with his mother (circa 1870's). I did not know for sure until then that she was his mother. I am not very familiar with spreadsheets, but my husband is, kind of. Can you explain a little further how to set the names and addresses up? You wouldn't have an example, would you? Thanks so much for the wonderful idea!! Carolyn Researching in DC: ADAMSON, CROWN, MULLICAN, BROWN (Georgetown), TRUNDLE/TRUNNELL, DAVIS, KREUTER, ARTES, GRAMLER <BR><BR><BR>**************************************<BR> AOL now offers free email to everyone. Find out more about what's free from AOL at http://www.aol.com.