<Tr> <Td_colspan="5"> Institutionalized first wife of Jock Ewing, visited by the Ewings at various times . </Td> </Tr> <Tr> <Td> John Ross Ewing III </Td> <Td> Tyler Banks and Omri Katz </Td> <Td> 4x01 </Td> <Td> 4--6 & 7--14 </Td> <Td> 190 (38 and 152) </Td> </Tr> <Tr> <Td_colspan="5"> J.R. and Sue Ellen's son . Originally played by uncredited babies during seasons 2 and 3 . </Td> </Tr> <Tr> <Td> Mitch Cooper </Td> <Td> Leigh McCloskey </Td> <Td> 4x02 </Td> <Td> 4--5, 8, 12 </Td> <Td> 46 </Td> </Tr>

What was jr's wife's name on dallas