__
                                              |  
                         _John MCGAHEY _______|
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                        |                        
 _James Slade MCGAHEY I_|
|                       |
|                       |                      __
|                       |                     |  
|                       |_Jean SWANN _________|
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|                                                
|
|--James Slade MCGAHEY II
|  
|                                              __
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|                        _____________________|
|                       |                     |
|                       |                     |__
|                       |                        
|_Margaret MCBRIDE _____|
                        |
                        |                      __
                        |                     |  
                        |_____________________|
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                                              |__