maughold is funny as switched north/south however it should be under North (I think - at least all my others in my database are indexed here) - however in the museum you need ask for Maughold old deeds as these are not numbered in same sequence as the xSS deeds - but the index to both are in the same book
eg the one under discussion:
dated 1 oct 1719;Wm Christian(Ballafaile Maughold) obo son Wm;Peter Corkill (braddan) + wife Jony obo their dau Margt;to marry by 10th Oct;Christian to settle estate - young couple to maintain him;Corkil to give half team of oxen + gears and after their death 12 sheep; Young couple to share estate of Ballafaile with Corkills - also to pay £2 10s to execs of Corkil's wills;witt John Loony,robt creetch,thos stole,John Killey (all x);Court 4 May 1720;
the marriage was Braddan 17191006