yes it is known as the 1868 first edition O/S 25inch to 1 mile - found at the Manx Museum (or British Library map room) - you need to plot the sequence of houses visited by the enumerator ! Very tedious work. The 1826 map by Smythe (see manxnotebook for map info) also shows individual houses in rural areas so that too may help.
There may be some mention of the pub on manxnotebook (look under public houses in subject index) - see if the 1837 etc directories give a name.