<Table> <Tr> <Th> Position </Th> <Th> On envelopes </Th> <Th> Salutation in letter </Th> <Th> Oral address </Th> </Tr> <Tr> <Td> Baronet </Td> <Td> Sir John Smith, Bt (or Bart) </Td> <Td> Sir or Dear Sir John (Smith) </Td> <Td> Sir or Sir John </Td> </Tr> <Tr> <Td> Baronetess in her own right </Td> <Td> Dame Mary Smith, Btss </Td> <Td> Madam or Dear Dame Mary (Smith) </Td> <Td> Madam or Dame Mary </Td> </Tr> <Tr> <Td> Baronet's wife </Td> <Td> Lady Smith </Td> <Td> Madam or Dear Lady Smith </Td> <Td> My Lady or Lady Smith </Td> </Tr> <Tr> <Td> Baronet's divorced wife </Td> <Td> Mary, Lady Smith </Td> <Td> Madam or Dear Lady Smith </Td> <Td> My Lady or Lady Smith </Td> </Tr> <Tr> <Td> Baronet's widow </Td> <Td> Mary, Lady Smith, Dowager Lady Smith, or Lady Smith if the heir incumbent is unmarried </Td> <Td> Madam or Dear Lady Smith </Td> <Td> My Lady or Lady Smith </Td> </Tr> </Table> <Tr> <Th> Position </Th> <Th> On envelopes </Th> <Th> Salutation in letter </Th> <Th> Oral address </Th> </Tr> <Tr> <Td> Baronet </Td> <Td> Sir John Smith, Bt (or Bart) </Td> <Td> Sir or Dear Sir John (Smith) </Td> <Td> Sir or Sir John </Td> </Tr> <Tr> <Td> Baronetess in her own right </Td> <Td> Dame Mary Smith, Btss </Td> <Td> Madam or Dear Dame Mary (Smith) </Td> <Td> Madam or Dame Mary </Td> </Tr>

How do you address the rt hon in a letter