I realise that this could be the old problem of Donl and Danl looking the same in hand-written records, but Tom Corteen, who transcribed all the Maughold parish registers, clearly wrote Margaret daur of Daniel Joghin bapt. 16 Oct 1681.
Donald was an earlier version of the name Daniel according to Constance Radcliffe, but by the time of Margaret's birth he was Daniel.

I have also made a note of the Arch Maughold will of Daniel Joughin of Rhenabb in 1733, no. 97, which I came across but didn't transcribe when I saw it was one of Philip's ones, and knowing that he would already have a transcript. Was this Margaret's father "Donald" (d.1733)? If so you can look it up on LDS film no.0106215 to double-check.

Sue