Re Directories - noticed in the NLS catalogue that the Trade Directories were listed separately to PO Directories. PO Directories included a link to an on line site - no such link for Trade Directories.
Had seen many references to "The Kraesult" eg.
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"At the Kraesult, Callander, on the 1st inst, aged 14 1/2 months, Maggie Auld, youngest child of Daniel MacEwen" (Dundee Courier 21 Dec 1883")
which pointed to a property rather than a "place".