Thanks Ray, I was restricted to using a small netbook, and hence had missed the second set of stables. Regarding the residence at the GN Hotel which now seems to have been a red herring, I had always thought they might have been staff, rather than guests. While the Agars Town theory looks attractive, if he was employed by the GNR perhaps their stables might have been the ones? though as you say, in that era there may well have been more. Will keep looking for pictures.