O'Brien, Mildred Bowen <br/><br/>
Calvert Co. Maryland Family Records 1670-1929 

 - Baltimore, MD  Gateway Press, Inc.  1992 
 - 363 pages  index 
<br/><br/> 1. Replacement copy 1992 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>1. Maryland. Calvert County - Genealogy - Sources