Miscellaneous: DERRY Surnames found in Ireland 1100 thru 1600.
Ireland Genealogy Projects Archives
http://www.igp-web.com/IGPArchives/copyright.htm
http://www.igp-web.com/IGPArchives/derry/ 
Transcribed and contributed by Don Kelly 

MacCloskey Chief    
MacConnell            
MacCracken           
MacGilligan          
MacDonnell Chief    
MacLoughlin           
Maginn               
MacNamee            
O'Carolan Chief      
O'Cassidy            
O'Broichan Chief     
O'Criodan             
O'Conor Lord         
O'Devlin. Chief          
O'Hagarty Chief     
O'Freel Chief      
 O'Keenan               
O'Kane Prince       
O'Quinn Lord        
O'Mullen Chief     
O'Mulligan          
O'Murray Chief       
O'Scullan              
O'Quigly