Nelson, Richard T. Jr. (Transcriber and compiler) <br/><br/>
Index for the 1940 Census of St. Mary's County, MD  (Internet and Microfilm) 

 -  Self Published  2013 
 - 143 pages  Lists alphabetically all the names in the census and where it is located online 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>1. Census - Saint Mary's County, Maryland - 1940