Hi Cazza,
Come across this post from years ago, relates to some research I'm doing for a mate from work.
Did you ever get to the bottom of the Mcquiggan / Wiggins thing.... I'm fairly satisfied that the John Wiggins b.Wigton 1846 who married Ellen Lowes in 1865 is the same as John McQuiggan, who's father was Henry McQuiggan from Ireland (1807-1874).... can you confirm or did you never get to the bottom of it?... and if you did, do you think the name change was likley accidental from an enumerator hearing things incorrecfty, or deliberate, maybe as a way to adopt a more english sounding name?.. be good to hear back.
Wibs