Yes, Sam will have a SR in doubles, but I don't know what it is and haven't worked it out . It could be as high as 82 but I'm not sure what her ranking was when she stopped playing.
Thanks Lambda. I found it in the end by looking back through the forum to her last tournament. Hopefully she will appear on an advance entry list in the near future so we can see what her SR is officially. But I agree that 79 should be the figure.