Robert III                                                
                         King of Scots 1390-1406                                   
                         1337-1406                                                 
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                         Lady Mary Stewart                                         
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                         William Douglas                                           
                         2nd Earl of Angus                                         
                         1398-1437                                                 
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                         Lady Helen Douglas                                        
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                         William Graham                                            
                         1st Earl of Montrose                                      
                         1463-1513                                                 
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                         Lady Elizabeth Graham                                     
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                         David Drummond                                            
                         2nd Lord Drummond                                         
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                         Mary Drummond                                             
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                         Jean Stirling                                             
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                         William Drummond, of Riccarton                            
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                         Katherine Drummond                                        
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                         Magdalen Dalyell                                          
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                         Thomas Monteith                                           
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                         Magdalen Monteith                                         
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                         Elizabeth Doniphan                                        
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                         Emma Grant Shippe                                         
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                         Anderson Shippe Truman                                    
                         1816-1887                                                 
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                         John Anderson Truman                                      
                         1851-1914                                                 
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                         Harry S. Truman                                           
                         33rd President of the USA 1945-1953                       
                         1884-1972