Thank you Frances for your information on John Rothmell and (perhaps) his father Charles & sister Ellinr. I will check into this further.
I have seen a reference in a will somewhere (which I cannot locate right now) of a Mr William Qualtrough having a sister Mrs Catherine Rothmell/Rothwell. This would indicate that Catherine also comes from one of the "propertied" Qualtroughs ... perhaps Kentraugh, Rushen, or Raby/Grenane/Mullen Vataage Qs in Lonan.
Re the dual baptisms I agree as the family lived for ongoing generations in Braddan and several of Wm & Charlotte Teare's children are buried in Braddan. William was a merchant in Douglas.
Still heaps of work to do......
Thanks again
Elizabeth