Knott, Michael A. <br/><br/>
History of St. Mary's County, MD- Election & Federal Census Districts -1790-1930 

 - Leonardtown, MD  Printing Press  2007 
 -  CD Supplement - CD #9 
<br/><br/> (Prepared for the St. Mary's County Historical Society) Replacement copy 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>1. Census Districts 2. Maps - SMC Election Districts