<Tr> <Th> Nephews </Th> <Td> Troy Jackson Justin Jackson </Td> </Tr> <Tr> <Th> Nieces </Th> <Td> Emma Jackson </Td> </Tr> <P> Ailsa Stewart (née O'Rourke, previously Hogan) is a fictional character from the Australian soap opera Home and Away . She was married to Alf Stewart and had a son Duncan . She was played by actress Judy Nunn for 13 and a half years . When Nunn left the show she was one of only four original cast members . The role of Ailsa was briefly played by theatre star Nancye Hayes whilst Nunn was taking leave due to illness in 2000 . </P> <P> Bevan Lee, a storyliner for the show named the character "Ailsa" after his friend Ailsa Piper . </P>

Who was alf married to in home and away