Jackson, Ronald Vern (Editor) <br/><br/>
District of Columbia, 1840 Index Census  

 - Bountiful, UT  Accelerated Indexing Systems, Inc.  1977 
 - 18 pages of indexing  Intro - Map 
<br/><br/><label>ISBN: </label>0895930234 
<br/><br/><label>LCCN: </label>7785903 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>1. Census<br/>2. District of Columbia